• BS, Mechanical Engineering, Cornell University, 1994
• MS, Mechanical Engineering, Georgia Institute of Technology, 1995
• Ph D, Mechanical Engineering, Georgia Institute of Technology, 1998

Books

Timothy W Simpson, R. J. Jiao, Z. Siddique and K. Hölttä-Otto, 2013, Advances in product family and product platform design: Methods and applications, Springer, New York, NY

Timothy W Simpson, Z. Siddique and J. Jiao, 2005, Product platform and product family design: Methods and applications

Book Reviews

Timothy W Simpson, 2020, Additive Manufacturing for the Aerospace Industry, pp. 1901-1902

Journal Articles

Qixiang Luo, Lu Yin, Timothy W Simpson and Allison Beese, 2023, "Dataset of process-structure-property feature relationship for laser powder bed fusion additive manufactured Ti-6Al-4V material.", DATA IN BRIEF, 46

Jayant Mathur, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2023, "Effects of Immersion on Knowledge Gain and Cognitive Load in Additive Manufacturing Process Education", 3D PRINTING AND ADDITIVE MANUFACTURING

Jennifer Bracken Brennan, Miney, William B. B., Timothy W Simpson, Jablokow, Kathryn W. W. and Christopher McComb, 2023, "Manufacturing Fixation in Design: Exploring the Effects of Manufacturing Fixation During Idea Generation", JOURNAL OF MECHANICAL DESIGN, 145, (1)

Naveen Kumar Muthumanickam, Jose Pinto Duarte and Timothy W Simpson, 2023, "Multidisciplinary concurrent optimization framework for multi-phase building design process", AI EDAM-ARTIFICIAL INTELLIGENCE FOR ENGINEERING DESIGN ANALYSIS AND MANUFACTURING, 37

Rohan Prabhu, Timothy W Simpson, Scarlett Rae Miller, Stephanie Cutler and Nicholas A. Meisel, 2022, "Teaching Designing for Additive Manufacturing: Formulating Educational Interventions That Encourage Design Creativity", 3D PRINTING AND ADDITIVE MANUFACTURING

Qixiang Lu, Allison Beese and Timothy W Simpson, 2022, "Effect of Processing Parameters on Pore Structures, Grain Features, and Mechanical Properties in Ti-6Al-4V by Laser Powder Bed Fusion", Additive Manufacturing, 56, pp. 102915 (15 pgs)

Glen Williams, Nicholas A. Meisel, Timothy W Simpson and Christopher McComb, 2022, "Design for Artificial Intelligence: Proposing a Conceptual Framework Grounded in Data Wrangling", JOURNAL OF COMPUTING AND INFORMATION SCIENCE IN ENGINEERING, 22, (6)

Rohan Prabhu, Timothy W Simpson, Scarlett Rae Miller and Nicholas A. Meisel, 2022, "Development and validity evidence investigation of a design for additive manufacturing self-efficacy scale", RESEARCH IN ENGINEERING DESIGN, 33, (4), pp. 437-453

Rohan Prabhu, Timothy W Simpson, Scarlett Rae Miller and Nicholas A. Meisel, 2022, "Mastering manufacturing: exploring the influence of engineering designers' prior experience when using design for additive manufacturing", JOURNAL OF ENGINEERING DESIGN, 33, (5), pp. 366-387

Byeong-Min Roh, Kumara, Soundar R. T., Hui Yang, Timothy W Simpson, Paul Witherell, Albert T. Jones and Yan Lu, 2022, "Ontology Network-Based In-Situ Sensor Selection for Quality Management in Metal Additive Manufacturing", JOURNAL OF COMPUTING AND INFORMATION SCIENCE IN ENGINEERING, 22, (6)

Jian Qin, Fu Hu, Ying Liu, Paul Witherell, Wang, Charlie C. L., David W. Rosen, Timothy W Simpson, Yan Lu and Qian Tang, 2022, "Research and application of machine learning for additive manufacturing", ADDITIVE MANUFACTURING, 52

Rohan Prabhu, Jordan S. Masia, Joseph T. Berthel, Nicholas A. Meisel and Timothy W Simpson, 2021, "Design and manufacturability data on additively manufactured solutions for COVID-19", DATA IN BRIEF, 36

Rohan Prabhu, Rainmar L. Leguarda, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2021, "Favoring Complexity: A Mixed Methods Exploration of Factors That Influence Concept Selection When Designing for Additive Manufacturing", JOURNAL OF MECHANICAL DESIGN, 143, (10)

Rohan Prabhu, Timothy W Simpson, Scarlett Rae Miller and Nicholas A. Meisel, 2021, "Fresh in My Mind! Investigating the effects of the order of presenting opportunistic and restrictive design for additive manufacturing content on students' creativity", JOURNAL OF ENGINEERING DESIGN, 32, (4), pp. 187-212

Rohan Prabhu, Jordan Scott Masia, Joseph T. Berthel, Nicholas A. Meisel and Timothy W Simpson, 2021, "Maximizing design potential: investigating the effects of utilizing opportunistic and restrictive design for additive manufacturing in rapid response solutions", RAPID PROTOTYPING JOURNAL, 27, (6), pp. 1161-1171

Byeong-Min Roh, Kumara, Soundar R. T., Paul Witherell and Timothy W Simpson, 2021, "Ontology-based Process Map for Metal Additive Manufacturing", JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 30, (12), pp. 8784-8797

Ruimin Chen, Yan Lu, Paul Witherell, Timothy W Simpson, Soundar Kumara and Hui Yang, 2021, "Ontology-Driven Learning of Bayesian Network for Causal Inference and Quality Assurance in Additive Manufacturing", IEEE ROBOTICS AND AUTOMATION LETTERS, 6, (3), pp. 6032-6038

Hui Yang, Prahalad Rao, Timothy W Simpson, Yan Lu, Paul Witherell, Abdalla R. Nassar, Edward Reutzel and Soundar Kumara, 2021, "Six-Sigma Quality Management of Additive Manufacturing", PROCEEDINGS OF THE IEEE, 109, (4), pp. 347-376

Sangjin Jung, Timothy W Simpson and Christina L. Bloebaum, 2021, "Value-driven design for product families: a new approach for estimating value and a novel industry case study", STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION, 63, (4), pp. 2009-2033

Jennifer Bracken Brennan, Timothy W Simpson, Christopher McComb, Kathryn W Jablokow and Joseph Hamann, 2021, "Part filtering methods for additive manufacturing: A detailed review and a novel process-agnostic method", ADDITIVE MANUFACTURING, 47

James Cunningham, Dale Shu, Timothy W Simpson and Conrad S Tucker, 2020, "A Sparsity Preserving Genetic Algorithm for Extracting Diverse Functional 3D Designs from Deep Generative Neural Networks", Design Science, 6, (e11), pp. 33 pages

Brad Hanks, Joseph Berthel, Mary I Frecker and Timothy W Simpson, 2020, "Mechanical Properties of Additively Manufactured Metal Lattice Structures: Data Review and Design Interface", Additive Manufacturing, 35, (10), pp. 14 pages

Dale Shu, James Cunningham, Gary M Stump, Simon Miller, Michael A Yukish, Timothy W Simpson and Conrad S Tucker, 2020, "3D Design using Generative Adversarial Networks and Physics-Based Validation", ASME Journal of Mechanical Design, 142, (7), pp. 15 pages

John Ostrander, Conrad S Tucker, Timothy W Simpson and Nicholas A. Meisel, 2020, "Evaluating the Use of Virtual Reality to Teach Introductory Concepts of Additive Manufacturing", ASME Journal of Mechanical Design, 142, (5), pp. 11 pages

Rohan Prabhu, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2020, "Exploring the Effects of Additive Manufacturing Education on Students’ Engineering Design Process and its Outcomes", ASME Journal of Mechanical Design, 142, (9), pp. 11 pages

Rohan Prabhu, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2020, "Complex Solutions for Complex Problems? Exploring the Role of Task Complexity on Learning, Design for Additive Manufacturing Use, and Creativity", ASME Journal of Mechanical Design, 142, (3), pp. 12 pages

Rohan Prabhu, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2020, "Teaching Design Freedom: Understanding the Effects of Variations in Design for Additive Manufacturing Education on Students’ Creativity", ASME Journal of Mechanical Design, 142, (9), pp. 8 pages

Rohan Prabhu, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2020, "But Will It Build? Assessing Student Engineering Designers' Use of Design for Additive Manufacturing Considerations in Design Outcomes", ASME Journal of Mechanical Design, 142, (9), pp. 15 pages

Jessica Menold, Kathryn W Jablokow and Timothy W Simpson, 2019, "The Prototype for X Framework: Exploring the Effects of a Structured Prototyping Framework on Design Attributes", Research in Engineering Design, 30, (2), pp. 187-201

Joseph Bartolai, Alexander Wilson-Heid, Jordan Kruse, Allison Beese and Timothy W Simpson, 2019, "Full Field Strain Measurement of Material Extrusion Additive Manufacturing Parts with Solid and Sparse Infill Geometries", JOM, 71, (3), pp. 871-879

Glen Williams, Nicholas A. Meisel, Timothy W Simpson and Christopher McComb, 2019, "Design Repository Effectiveness for 3D Convolutional Neural Networks: Application to Additive Manufacturing", ASME Journal of Mechanical Design, 141, (11), pp. 111701 (12 pages)

James Cunningham, Timothy W Simpson and Conrad S Tucker, 2019, "An Investigation of Surrogate Models for Efficient Performance-Based Decoding of 3D Point Clouds", ASME Journal of Mechanical Design, 141, (12), pp. 121401 (11 pgs)

Gary M Stump, Simon D. Miller, Michael A Yukish, Timothy W Simpson and Conrad S Tucker, 2019, "Spatial Grammar-based Recurrent Neural Network for Design Form and Behvior Optimization", ASME Journal of Mechanical Design, 141, (12), pp. 124501 (9 pgs)

Brant Stoner, Joseph Bartolai, Dorcas , Nicholas A. Meisel and Timothy W Simpson, 2018, "Achieving Functionally Graded Material Composition Through Bicontinuous Mesostructural Geometry in Material Extrusion Additive Manufacturing", JOM, 70, (3), pp. 413-418

Joseph Bartolai and Timothy W Simpson, 2018, "Predicting Strength of Additively Manufactured Thermoplastic Polymer Parts Produced Using Material Extrusion", Rapid Prototyping Journal, 24, (2), pp. 321-332

Joseph Bartolai, Alex E. Wilson-Heid, Jordan Kruse, Allison Beese and Timothy W Simpson, 2018, "Full Field Strain Measurement of Material Extrusion Additive Manufacturing Parts with Solid and Sparse Infill Geometries", JOM, 71, (3), pp. 871-879

V. Tripathi, Andrew Armstrong, X. Gong, Guhaprasanna Manogharan, Timothy W Simpson and Edward Demeter, 2018, "Milling of Inconel 718 Block Supports Fabricated Using Laser Powder Bed Fusion", Journal of Manufacturing Processes, 34, (Part B), pp. 740-749

Simon Miller, Michael A Yukish and Timothy W Simpson, 2018, "Design as a Sequential Decision Process: A Method for Reducing the Design Set Space Using Models to Bound Objectives", Structural and Multidisciplinary Optimization, 57, (1), pp. 305-324

David Saltzman, Michael Bichnevicius, Stephen Lynch, Edward Reutzel and Timothy W Simpson, 2018, "Design and Evaluation of an Additively Manufactured Aircraft Heat Exchanger", Applied Thermal Engineering, 138, pp. 254-263

Chris Lefky, B. Zucker, Abdalla Nassar, Timothy W Simpson and Owen Hildreth, 2018, "Impact of Compositional Gradients on Selectivity of Dissolvable Support Structures for Directed Energy Deposited Metals", Acta Materialia, 153, pp. 1-7

J. Butler, Landen Bowen, Eric Wilcox, Adam Schrager, Mary I Frecker, Paris Von Lockette, Timothy W Simpson, Robert Lang, Larry Howell and Spencer Magleby, 2018, "A Model for Multi-Input Mechanical Advantage in Origami-Based Mechanisms", ASME Journal of Mechanisms and Robotics, 10, (6), pp. 9 pages

Mehmet Unal, Gordon P Warn and Timothy W Simpson, 2018, "Quantifying the Shape of Pareto Fronts during Multi-Objective Trade Space Exploration", ASME Journal of Mechanical Design, 140, (2), pp. 13 pages

Sangjin Jung, Oyku Asikoglu and Timothy W Simpson, 2018, "A Method to Evaluate Direct and Indirect Design Dependencies between Components in a Product Architecture", Research in Engineering Design, 29, (4), pp. 507-530

Jesse Boyer, Carolyn Seepersad, Timothy W Simpson, Christopher B Williams and Paul Witherell, 2017, "Designing for Additive Manufacturing: Recent Advances in Design for Additive Manufacturing", ASME Journal of Mechanical Design, 139, (10), pp. 100901 (2 pgs)

Timothy W Simpson, Christopher Williams and Michael Hripko, 2017, "Preparing Industry for Additive Manufacturing and Its Applications: Summary & Recommendations from a National Science Foundation Workshop", Additive Manufacturing, 13, pp. 166-178

Sangjin Jung and Timothy W Simpson, 2017, "New Modularity Indices for Modularity Assessment and Clustering of Product Architecture", Journal of Engineering Design, 28, (1), pp. 1-22

Jessica Menold, Kathryn Jablokow and Timothy W Simpson, 2017, "Prototype for X (PFX): A Holistic Framework for Structuring Prototyping Methods to Support Engineering Design", Design Studies, 50, pp. 70-112

Chris Lefky, Brian Zucker, David Wright, Abdalla Nassar, Timothy W Simpson and Owen Hildreth, 2017, "Dissolvable Supports in Powder Bed Fusion-Printed Stainless Steel", 3D Printing and Additive Manufacturing, 4, (1), pp. 3-11

Timothy W Simpson, Simon Miller, Elliott Tibor, Michael Yukish, Stump Gary, Hanumanthrao Kannan, Bryan Mesmer, Eliot Winer and Christina Bloebaum, 2017, "Adding Value to Trade Space Exploration When Designing Complex Engineered Systems", Systems Engineering, 20, (2), pp. 131-146

Mehmet Unal, Simon Miller, Jaskanwal Chhabra, Gordon P Warn, Michael A Yukish and Timothy W Simpson, 2017, "A Sequential Decision Process for the System-Level Design of Structural Frames", Structural and Multidisciplinary Optimization, 56, (5), pp. 991-1011

Nicholas A. Meisel, Matthew Woods, Timothy W Simpson and Corey Dickman, 2017, "Redesigning a Reaction Control Thruster for Metal-Based Additive Manufacturing: A Case Study in Design for Additive Manufacturing", ASME Journal of Mechanical Design, 139, (10), pp. 100903 (8 pgs)

Sharon Flank, Abdalla Nassar, Timothy W Simpson, Nathan Valentine and Elburn Edmond, 2017, "Fast Authentication of Metal Additive Manufacturing", 3D Printing and Additive Manufacturing, 4, (3), pp. 143-148

Sangjin Jung and Timothy W Simpson, 2016, "An Integrated Approach to Product Family Redesign Using Commonality and Variety Metrics", Research in Engineering Design, 27, (4), pp. 391-412

Alex Dunbar, Erik Denlinger, Jared Heigel, Pan Michaleris, P. Guerrier, Rich Martukanitz and Timothy W Simpson, 2016, "Experimental In Situ Distortion and Temperature Measurements During the Laser Powder Bed Fusion Additive Manufacturing Process", Additive Manufacturing, 12, (A), pp. 25-30

Mehmet Unal, Gordon P Warn and Timothy W Simpson, 2016, "Quantifying Tradeoffs to Reduce Dimensionality of Complex Design Optimization Problems and Expedite Trade Space Exploration", Structural and Multidisciplinary Optimization, 54, (2), pp. 233-248

Kevin Otto, Katja Hölttä-Otto, Timothy W Simpson, Dieter Krause, S Ripperda and Seung-Ki Moon, 2016, "Global Views on Modular Design Research: Linking Alternative Methods to Support Modular Product Family Concept Development", ASME Journal of Mechanical Design, 138, (7), pp. 071101 (16 pages)

Owen Hildreth, Abdalla Nassar, Kevin Chase and Timothy W Simpson, 2016, "Dissolvable Metal Supports for 3D Direct Metal Printing", 3D Printing and Additive Manufacturing, 3, (2), pp. 90-97

Y Ji, Y Lou, M Qu, John David Rowatt, F Zhang, Timothy W Simpson and Long-Qing Chen, 2016, "Predicting Coherency Loss of Gamma'' Precipitates in IN718 Superalloy", Metallurgical and Materials Transactions A, 47, (6), pp. 3235-3247

Adrienne Crivaro, Robert Sheridan, Mary I Frecker, Timothy W Simpson and Paris Von Lockette, 2016, "Bistable snap-through compliant mechanism using magneto active elastomer actuation", Journal of Intelligent Material Systems and Structures, 27, (15), pp. 2059-2061

Landen Bowen, Springsteen Kyra, Mary I Frecker and Timothy W Simpson, 2016, "Trade Space Exploration of Magnetically Actuated Origami Mechanisms", ASME Journal of Mechanisms and Robotics, 8, (3), pp. 031012 (12 pages)

J Chang, K Jung, W Kim, S K Moon, Freivalds, Timothy W Simpson and S P Baik, 2014, "Effects of weight balance on 3D TV shutter type glasses: Subjective discomfort and physical contact load on the nose", International Journal of Industrial Ergonomics, 44, (6), pp. 801-809

S. K. Moon, K. J. Park and Timothy W Simpson, 2014, "Platform design variable identification for a product family using multi-objective particle swarm optimization", Research in Engineering Design, 25, (2), pp. 95-108

F AC Viana, Timothy W Simpson, V Balabanov and V Toropov, 2014, "Metamodeling in multidisciplinary design optimization: How far have we really come?", AIAA Journal, 52, (4), pp. 670-690

I. J. Petrick and Timothy W Simpson, 2013, "3D printing disrupts manufacturing: How economies of one create new rules of competition", Research Technology Management, 56, (6), pp. 12-16

K. Grantham, G. E. Okudan Kremer, Timothy W Simpson and O. Ashour, 2013, "A study on situated cognition: Product dissection’s effect on redesign activities", Advances in Engineering Education, 3, (4)

G. E. Okudan Kremer, Timothy W Simpson and O.` Ashour, 2013, "An exploration of the effectiveness of product archaeology in an undergraduate engineering curriculum: What can a five-hour curriculum do?", Advances in Engineering Education, 3, (4)

M. J. Woodruff, P. M. Reed and Timothy W Simpson, 2013, "Many objective visual analytics: Rethinking the design of complex engineered systems", Structural & Multidisciplinary Optimization, 48, (1), pp. 201-219

T. J. Marion, J. H. Friar and Timothy W Simpson, 2012, "New product development practices and early-stage firms: Two in-depth case studies", Journal of Product Innovation Management, 29, (4), pp. 639-654

J. J.-W. Yoo, S. R. T. Kumara and Timothy W Simpson, 2012, "Modular product design using cyberinfrastructure for global manufacturing", ASME Journal of Computing and Information Science in Engineering, 12, (3), pp. 10

Timothy W Simpson, S. Brennan, L. A. Slingerland, A. Bobuk, D. Logan and K. Reichard, 2012, "From user requirements to commonality specifications: An integrated approach to product family design", Research in Engineering Design, 23, (2), pp. 141-153

Timothy W Simpson, L. Zhang, M. Frecker and G. Lesieutre, 2012, "Supporting knowledge exploration and discovery in multi-dimensional data with interactive multiscale visualization", Journal of Engineering Design, 23, (1), pp. 23-47

Timothy W Simpson and J. R. R. A. Martins, 2011, "Multidisciplinary design optimization for complex engineered systems: Report from a National Science Foundation workshop", Journal of Mechanical Design, 133, (10), pp. 10

J. K. Allen, S. Azarm and Timothy W Simpson, 2011, "Designing complex engineered systems", ASME Journal of Mechanical Design, 133, (10), pp. 2

D. Wolf, J. Hyland, Timothy W Simpson and X. Zhang, 2011, "The importance of training for trade space exploration: A study of novice and expert users", ASME Journal of Computing and Information Science in Engineering, 11, (3), pp. 11

S. K. Moon, Timothy W Simpson and S. R. T. Kumara, 2010, "A methodology for knowledge discovery to support product family design", Annals of Operations Research, 174, (1), pp. 201-218

C. Binz, D. B. Spencer, D. A. Levin and Timothy W Simpson, 2010, "Designing for the space environment via trade space exploration", Journal of Spacecraft and Rockets, 47, (6), pp. 1070-1073

W. Regli, J. B. Kopena, M. Grauer, Timothy W Simpson, R. Stone, K. Lewis, M. Bohm, D. Wilkie, M. Piecyk and J. Osecki, 2010, "Semantics for digital engineering archives supporting engineering design education", AI Magazine, 31, (1), pp. 37-50

R. S. Farrell and Timothy W Simpson, 2010, "Improving cost effectiveness in an existing product line using component product platforms", International Journal of Production Research, 48, (11), pp. 3299-3317

F. Gao, G. Xiao and Timothy W Simpson, 2010, "Identifying functional modules using generalized directed graphs: Definition and application", Computers in Industry, 61, (3), pp. 260-269

F. Alizon, S. B. Shooter and Timothy W Simpson, 2010, "Recommending a platform leveraging strategy based on the homogeneous or heterogeneous nature of a product line", Journal of Engineering Design, 21, (1), pp. 93-110

G. Stump, S. Lego, M. Yukish, Timothy W Simpson and J. A. Donndelinger, 2009, "Visual steering commands for trade space exploration: User-guided sampling with example", ASME Journal of Computing and Information Science in Engineering, 9, (4), pp. 10

M. Devendorf, K. Lewis, Timothy W Simpson, R. B. Stone and W. C. Regli, 2009, "Evaluating the use of digital product repositories to enhance product dissection activities in the classroom", ASME Journal of Computing and Information Science in Engineering, 9, (4), pp. 8

A. Khajavirad, J. Michalek and Timothy W Simpson, 2009, "An efficient decomposed multiobjective genetic algorithm for solving the joint product platform selection and product family design problem with generalized commonality", Structural and Multidisciplinary Optimization, 39, (2), pp. 187-201

T. J. Marion and Timothy W Simpson, 2009, "New product development practice application to an early-stage firm: The case of the PaperPro® StackMaster", Design Studies, 30, (5), pp. 561-587

F. Alizon, S. B. Shooter and Timothy W Simpson, 2009, "Henry Ford and the Model T: Lessons for product platforming and mass customization", Design Studies, 30, (5), pp. 588-605

X. Ye, H. J. Thevenot, F. Alizon, J. K. Gerhenson, K. Khadke, Timothy W Simpson and S. B. Shooter, 2009, "Using product family evaluation graphs in product family design", International Journal of Product Research, 47, (13), pp. 3559-3585

H. J. Thevenot and Timothy W Simpson, 2009, "A method for benchmarking product family design alternatives", ASME Journal of Mechanical Design, 131, (4), pp. 9

D. Kumar, W. Chen and Timothy W Simpson, 2009, "A market-driven approach to product family design", International Journal of Production Research, 47, (1), pp. 71-104

F. Alizon, C. Williams, S. B. Shooter and Timothy W Simpson, 2009, "Merge-based design: A new method for managing variety and improving customization", International Journal of Mass Customization, 3, (1), pp. 1-17

D. E. Willis, R. R. Barton, Timothy W Simpson, S. Purao and S. T. Hunter, 2009, "Mapping design domains, bridging design cultures", ASME Journal of Mechanical Design, Guest Editorial, 131, (8), pp. 080201-1 - 08201-2

Timothy W Simpson, R. R. Barton and D. Celento, 2008, "Interdisciplinary by design", ASME Mechanical Engineering Magazine Special Design Issue, 130, (9), pp. 30-33

S. K. Moon, Timothy W Simpson, J. Shu and S. R. T. Kumara, 2008, "A method for platform identification to support service family design", International Journal of Services Operations and Informatics, 3, (3/4), pp. 294-317

M. Ogot, G. Kremer, J. Lamancusa and Timothy W Simpson, 2008, "Developing a framework for disassemble/analyze/assemble (DAA) activities in engineering education", Journal of Design Research, 7, (2), pp. 120-135

M. R. Bohm, R. B. Stone, Timothy W Simpson and E. D. Steva, 2008, "Introduction to a data schema: The inner workings of a design repository", Computer-Aided Design, 40, (7), pp. 801-811

S. K. Moon, J. Park, Timothy W Simpson and S. R. T. Kumara, 2008, "A dynamic multi-agent system based on the negotiation mechanism for product family design", IEEE Transactions on Automation Science and Engineering, 5, (2), pp. 234-244

J. Fu, Timothy W Simpson and S. B. Joshi, 2008, "Shape differentiation of freeform surfaces using a similarity measure based on an integral of Gaussian curvature", Computer-Aided Design, 403, pp. 311-323

R. S. Farrell and Timothy W Simpson, 2008, "A method to improve platform leveraging in a market segmentation grid for an existing product line", ASME Journal of Mechanical Design, 130, (3), pp. 031403-1 - 031403-11

J. Park and Timothy W Simpson, 2008, "Toward an activity-based costing system for product families and product platforms in the early stages of development", International Journal of Production Research, 46, (1), pp. 99-130

J. Jiao, Timothy W Simpson and Z. Siddique, 2007, "Product family design and platform-based product development: A state-of-the-art review", Journal of Intelligent Manufacturing, 18, (1), pp. 5-29

S. B. Shooter, C. M. Evans and Timothy W Simpson, 2007, "Building a better ice scraper-a case in product platforms for the entrepreneur", Journal of Intelligent Manufacturing, 18, (1), pp. 159-170

M. Van Wie, R. Stone, H. Thevenot and Timothy W Simpson, 2007, "Examination of platform and differentiating elements in product design", Journal of Intelligent Manufacturing, 18, (1), pp. 77-96

T. J. Marion, H. J. Thevenot and Timothy W Simpson, 2007, "A cost-based mythology for evaluating product platform commonality sourcing decisions with two examples", International Journal of Production Research, 45, (22), pp. 5285-5308

Timothy W Simpson, K. Barron, L. Rothrock, M. Frecker, R. R. Barton and C. Ligetti, 2007, "Graphical user interfaces for engineering design: Impact of response delay and training on user performance", Reearch in Engineering Design, 18, (2), pp. 49-65

H. J. Thevenot and Timothy W Simpson, 2007, "A comprehensive metric for evaluating commonality in a product family", Journal of Engineering Design, 18, (6), pp. 577-598

H. J. Thevenot, Timothy W Simpson, F. Alizon and S. B. Shooter, 2007, "A method to manage the tradeoff between diversity and commonality during product family design", Concurrent Engineering: Research and Applications, 15, (2), pp. 127-139

F. Alizon, K. Khadke, H. J. Thevenot, J. K. Gershenson, T. J. Marion, S. B. Shooter and Timothy W Simpson, 2007, "Frameworks for product design and development", Concurrent Engineering: Research and Applications, 15, (2), pp. 187-199

F. Alizon, S. B. Shooter and Timothy W Simpson, 2007, "Improving an existing product family based on commonality/diversity, modularity, and cost", Design Studies, 28, (4), pp. 387-409

Timothy W Simpson, M. Frecker, L. Rothrock and R. R. Barton, 2007, "Graphical and text-based design interfaces for parameter design of an I-beam, desk lamp, aircraft wing, and job shop manufacturing system", Engineering with Computers, 23, (2), pp. 93-107

J. Nanda, H. J. Thevenot, Timothy W Simpson, R. B. Stone, M. Bohm and S. B. Shooter, 2007, "Product family design knowledge representation, aggregation, reuse, and analysis", Artificial Intelligence for Engineering Design, Anlysis and Manufacturing, 21, (2), pp. 173-193

R. S. Farrell, Timothy W Simpson, G. Stump and J. Park, 2007, "A prototype web-based custom product specification system", International Journal of Mass Customization, 2, (1/2), pp. 161-178

H. J. Thevenot and Timothy W Simpson, 2007, "Guidelines to minimize variation when estimating product line commonality through product family dissection", Design Studies, 28, (2), pp. 175-194

J. D. Martin and Timothy W Simpson, 2006, "A methodology to manage system-level uncertainty during conceptual design", ASME Journal of Mechanical Design, 128, (4), pp. 959-968

S. E. Gano, J. E. Renaud, J. D. Martin and Timothy W Simpson, 2006, "Update strategies for Kriging models for using in variable fidelity optimization", Structural and Multidisciplinary Optimization

J. Nanda, Timothy W Simpson, S. R. T. Kumara and S. B. Shooter, 2006, "Product family ontology development using formal concept analysis and web ontology language", ASME Journal of Computing and Information Science in Engineering

F. Alizon, S. B. Shooter and Timothy W Simpson, 2006, "Reuse of manufacturing knowledge to facilitate platform-based product realization", ASME Journal of Computing and Information Science in Engineering

H. J. Thevenot and Timothy W Simpson, 2006, "Commonality indices for product family design: A detailed comparison", Journal of Engineering Design

L. Rothrock, K. Barron, Timothy W Simpson, M. Frecker, R. R. Barton and C. Ligetti, 2006, "Applying the proximity compatibility and the control-display compatibility principles to engineering design interfaces", Human Factors and Ergonomics in Manufacturing

S. M. Clark, J. H. Griebsch and Timothy W Simpson, 2005, "Analysis of support vector regression for approximation of complex engineering anlayses", ASME Journal of Mechanical Design, 127, (6), pp. 1077-1087

C. D. McAllister, Timothy W Simpson, K. Hacker, K. Lewis and A. Messac, 2005, "Integrating Linear Physical Programming within Collaborative Optimization for Multiobjective Multidisciplinary Design Optimization", Structural and Multidisciplinary Optimization, 29, (3), pp. 178-189

C. B. Ligetti and Timothy W Simpson, 2005, "Metamodel-Driven Design Optimization Using Integrative Graphical Design Interfaces: Results from a Job Shop Manufacturing Simulation", ASME Journal of Computing and Information Science in Engineering, 5, (1), pp. 8-17

J. Martin and Timothy W Simpson, 2005, "On Using Kriging Models as Probabilistic Models in Design", SAE Transactions, 5, pp. 129-139

S. B. Shooter, Timothy W Simpson, S. R. T. Kumara, R. B. Stone and J. P. Terpenny, 2005, "Toward a Multi-Agent Information Infrastructure for Product Family Planning and Mass Customization", International Journal of Mass Customization, 1, (1), pp. 134-155

G. Q. Huang, Timothy W Simpson and B. J. Pine, 2005, "The Power of Product Platforms in Mass Customization", International Journal of Mass Customization, 1, (1), pp. 1-13

J. Park and Timothy W Simpson, 2005, "Development of a production cost estimation framework to support product family design", International Journal of Product Research, 43, (4), pp. 731-772

J. D. Martin and Timothy W Simpson, 2005, "On the Use of Kriging Models to Approximate Deterministic Computer Models", AIAA Journal, 43, (4), pp. 853-863

Timothy W Simpson, 2005, "Multidisciplinary Design Optimization", Aerospace America-Special 2005 Year in Review Issue, 43, (12), pp. p. 34

Timothy W Simpson, D. J. Medeiros, S. B. Joshi, A. Lehtihet, R. A. Wysk, G. R. Pierce and T. A. Litzinger, 2004, "A New Course for Integrating Design, Manufacturing, and Production into the Engineering Curriculum", International Journal of Engineering Education, 20, (5), pp. 764-776

A. Srivastava, K. Hacker, K. Lewis and Timothy W Simpson, 2004, "A Method for Using Legacy Data for Metamodel-based Design of Large-Scale Systems", Structural and Multidiscplinary Optimization, 28, (2-3), pp. 146-155

Timothy W Simpson, A. J. Booker, D. Ghosh, A. A. Giunta, P. N. Koch and R.-J. Yang, 2004, "Approximation Methods in Multidisciplinary Analysis and Optimization: A Panel Discussion", Structural and Multidisciplinary Optimization, 27, (5), pp. 302-313

Timothy W Simpson and B. D'Souza, 2004, "Assessing Variable Levels of Platform Commonality within a Product Family Using a Multiobjective Genetic Algorithm", Concurrent Engineering: Research and Applications, 12, (2), pp. 119-130

G. G. Wang and Timothy W Simpson, 2004, "Fuzzy Clustering Based Hierarchical Metamodeling for Global Constrained Design Optimization", Engineering Optimization, 36, (3), pp. 313-335

Timothy W Simpson, 2004, "Multidisciplinary Design Optimization", Aerospace America-Special 2004 Year in Review Issue, 41, (12), pp. p. 34

Timothy W Simpson, 2003, "Experiences with a Hands-on Activity to Contrast Craft Production and Mass Production in the Classroom", International Journal of Engineering Education, 19, (2), pp. 297-304

G. Hernandez, Timothy W Simpson, J. Allen, E. Bascaran, L. Avila and F. Salinas, 2001, "Robust Design of Families of Products with Production Modeling and Evaluation", ASME Journal of Mechanical Design, 123, (2), pp. 183-190

Timothy W Simpson, J. Peplinski, P. Koch and J. Allen, 2001, "Metamodels for Computer-Based Engineering Design: Survey and Recommendations", Engineering with Computers, 17, (2), pp. 129-150

Timothy W Simpson, J. Maier and F. Mistree, 2001, "Product Platform Design: Method and Application", Research in Engineering Design, 13, (1), pp. 2-22

M. Meekesheimer, R. Barton, Timothy W Simpson, F. Limayem and B. Yannou, 2001, "Metamodeling of Combined Discrete/Continuous Responses", AIAA Journal, 39, (10), pp. 1950-1959

B. Kulvatunyou, Timothy W Simpson, E. Halberg and B. Hodge, 2000, "Parametric Modeling Approach for Refiner Plate Design and Production", AFS Transactions, 108, pp. 673-683

W. Chen, Timothy W Simpson, J. Allen and F. Mistree, 1999, "Satisfying Ranged Sets of Design Requirements: A Design Metric Using Design Capability Indices", Engineering Optimization, 31, (4), pp. 615-639

P. Koch, Timothy W Simpson, J. Allen and F. Mistree, 1999, "Statistical Approximations for Multidisciplinary Optimization: The Problem of Size", Special Multidisciplinary Design Optimization Issue of Journal of Aircraft, 36, (1), pp. 275-286

Timothy W Simpson, D. Rosen, J. Allen and F. Mistree, 1998, "Metrics for Assessing Design Freedom and Information Certainty in the Early Stages of Design", Journal of Mechanical Design, 120, (4), pp. 628-635

P Witherell, S Feng, Timothy W Simpson, D B Saint John, P Michaleris, Z K Liu, L Q Chen and R Martukanitz, , "Toward metamodels for composable and reusable additive manufacturing process models", ASME Journal of Manufacturing Science and Engineering, 136, (6), pp. 061025

Rohan Prabhu, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, , "Effects of Opportunistic and Restrictive Design for Additive Manufacturing Content Presentation Order on Students’ Creativity", Journal of Engineering Design

Rohan Prabhu, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, , "Additive Creativity: Investigating the Use of Design for Additive Manufacturing to Encourage Creativity in the Engineering Design Industry", International Journal of Design Creativity and Innovation

Sangjin Jung, Timothy W Simpson and Christina Bloebaum, , "Value-Driven Design for Product Families: A New Approach for Estimating Value and a Novel Industry Case Study", Structural & Multidisciplinary Optimization

Jennifer Braken, James Pomorski, Clint Armstrong, Rohan Prabhu, Timothy W Simpson, Kathryn W Jablokow, William Cleary and Nicholas A. Meisel, , "Design for Metal Powder Bed Fusion: The Geometry for Additive Part Selection (GAPS) Worksheet", Additive Manufacturing, 35, (10), pp. 8 pages

Sangjin Jung, Levent Kara, Timothy W Simpson and Kate Whitefoot, , "Is Additive Manufacturing an Environmentally and Economically Preferred Alternative for Mass Production?", Environmental Science & Technology

Rohan Prabhu, Timothy W Simpson, Scarlett Rae Miller, Stephanie Cutler and Nicholas A. Meisel, , "Teaching Designing for Additive Manufacturing: Formulating Educational Interventions That Encourage Design Creativity", 3D Printing & Additive Manufacturing

Jayant Mathur, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, , "Effects of Immersion On Knowledge Gain And Cognitive Load in Additive Manufacturing Process Education", 3D Printing & Additive Manufacturing

Conference Proceedings

Jayant Mathur, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2022, "Identifying the Effects of Immersion on Design for Additive Manufacturing Evaluation of Designs of Varying Manufacturability", ASME 2022 International Design Engineering Technical Conferences – Design Automation Conference, ASME, pp. Paper No. DETC2022-90063

Glen Williams, Nicholas A. Meisel, Timothy W Simpson and Christopher McComb, 2022, "Analyzing Expert Design Cost Estimation for Additive Manufacturing", ASME 2022 International Design Engineering Technical Conferences – Design Automation Conference, ASME, pp. Paper No. DETC2022-90260

Jennifer Bracken Brennan, Timothy W Simpson, William B. Miney and Kathryn W Jablokow, 2021, "THE IMPACT OF MANUFACTURING FIXATION IN DESIGN: INSIGHTS FROM INTERVIEWS WITH ENGINEERING PROFESSIONALS", PROCEEDINGS OF ASME 2021 INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION (IMECE2021), VOL 2B

Rohan Prabhu, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2020, "Fresh in My Mind! Investigating the Effects of the Order of Presenting Opportunistic and Restrictive Design for Additive Manufacturing Content on Creativity", ASME 2020 International Design Engineering Technical Conferences – Design Education Conference, ASME, pp. Paper No. DETC2020-22449

Jennifer Bracken, Christopher McComb, Timothy W Simpson and Kathryn W Jablokow, 2020, "A Review of Part Filtering Methods for Additive Manufacturing", ASME 2020 International Design Engineering Technical Conferences – Design Automation Conference, ASME, pp. Paper No. DETC2020-22448

Rohan Prabhu, Rainmar Leguarda, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2020, "Favoring Complexity: A Mixed Methods Exploration of Factors That Influence Concept Selection in Design for Additive Manufacturing", ASME 2020 International Design Engineering Technical Conferences – Design Automation Conference, ASME, pp. Paper No. DETC2020-22447

Glen Williams, Nicholas A. Meisel, Timothy W Simpson and Christopher McComb, 2020, "Deriving Metamodels to Relate Machine Learning Quality to Design Repository Characteristics in the Context of Additive Manufacturing", ASME 2020 International Design Engineering Technical Conferences – Design Automation Conference, ASME, pp. Paper No. DETC2020-22518

Rohan Prabhu, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2019, "But Will It Build? Assessing Student Engineering Designers' Use of Design for Additive Manufacturing Considerations in Design Outcomes", ASME 2019 International Design Engineering Technical Conferences – Design Education Conference, ASME, pp. Paper No. DETC2019-97478

Rohan Prabhu, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2019, "Complex Solutions for Complex Problems? Exploring the Role of Task Complexity on Learning, Design for Additive Manufacturing Use, and Creativity", ASME 2019 International Design Engineering Technical Conferences – Design Education Conference, ASME, pp. Paper No. DETC2019-97474

James Cunningham, Simon Miller, Michael A Yukish, Timothy W Simpson and Conrad S Tucker, 2019, "Deep Reinforcement Learning for Transfer of Control Policies", ASME 2019 International Design Engineering Technical Conferences – Design Automation Conference, ASME, pp. Paper No. DETC2019-97689

John Ostrander, Lauren Ryan, Snehal Dhengre, Christopher McComb, Timothy W Simpson and Nicholas A. Meisel, 2019, "A Comparative Study of Virtual Reality and Computer-Aided Design to Evaluate Parts for Additive Manufacturing", ASME 2019 International Design Engineering Technical Conferences – Design Automation Conference, ASME, pp. Paper No. DETC2019-97480

Jennifer Bracken, Zachary Bentley, James Meyer, Erik Miller, Kathryn W Jablokow, Timothy W Simpson and Nicholas A. Meisel, 2019, "Investigating the Gap Between Research and Practice in Additive Manufacturing", Proceedings of the 30th Annual International Solid Freeform Fabrication Symposium, University of Texas - Austin, pp. 80-96

Morgan Austin, Thao Tran-Le, Robert Kunz, Timothy W Simpson and Rui Ni, 2019, "Experimental and Computational Studies of Particle Scavenge Flow in Direct Metal Laser Sintering", ASME-JSME-KSME Joint Fluids Engineering Conference, ASME, pp. Paper No. AJKFLUIDS2019-4965

Chris Murphy, Nicholas A. Meisel, Timothy W Simpson and Christopher McComb, 2018, "Using Autoencoded Voxel Patterns to Predict Part Mass, Required Support Material, and Build Time", Proceedings of the 29th Annual International Solid Freeform Fabrication Symposium, University of Texas - Austin, Austin, TX, pp. 1660-1674

John Ostrander, Conrad S Tucker, Timothy W Simpson and Nicholas A. Meisel, 2018, "Evaluating the Effectiveness of Virtual Reality as an Interactive Educational Resource for Additive Manufacturing", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2018-86036

Rohan Prabhu, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2018, "Teaching Design Freedom: Exploring the Effects of Design for Additive Manufacturing Education on Components of Creativity", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2018-85938

Rohan Prabhu, Scarlett Rae Miller, Timothy W Simpson and Nicholas A. Meisel, 2018, "The Earlier the Better? Investigating the Importance of Timing on Effectiveness of Design for Additive Manufacturing Education", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2018-86333

Sangjin Jung and Timothy W Simpson, 2018, "Product Family Redesign Using Additive Manufacturing", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2018-85627

Jen Bracken, Sean N Brennan, Clifford J Lissenden, I. Van Sant, Timothy W Simpson, Karl M Reichard and M. Ng, 2018, "Change Propagation during Prototyping: A Case Study of a Robotic Inspection System for Dry Nuclear Waste Storage Casks", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2018-86283

Matt Derring, James Cunningham, R. Desai, Michael A Yukish, Timothy W Simpson and Conrad S Tucker, 2018, "A Physics-Based Virutal Environment for Enhancing the Quality of Deep Generative Designs", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2018-86333

Jivtesh Khurana, Timothy W Simpson and Mary I Frecker, 2018, "Structurally Intelligent 3D Layer Generation for Active-Z Printing", Proceedings of the 29th Annual International Solid Freeform Fabrication Symposium, University of Texas - Austin, Austin, TX, pp. 2413-2426

Andrew Armstrong, Michael Barclift and Timothy W Simpson, 2017, "Development of CAD-Integrated Cost Estimator to Support Design for Additive Manufacturing", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2017-68330

Michael Barclift, Andrew Armstrong, Timothy W Simpson and Sanjay B Joshi, 2017, "CAD-Integrated Cost Estimation and Build Orientation Optimization to Support Design for Metal Additive Manufacturing", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2017-68376

Michael Barclift, Timothy W Simpson, Maryam Nusiner and Scarlett Rae Miller, 2017, "An Investigation into the Driving Factors of Creativity in Design for Additive Manufacturing", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2017-68395

Shantanab Dinda, Devansh Modi, Timothy W Simpson, Saish Tedia and Christopher Williams, 2017, "Expediting Time, Material, and Cost Estimation for Material Extrusion Processes to Enable Mobile Applications", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2017-68230

Shantanab Dinda, Timothy W Simpson and Leanne Gluck, 2017, "Education Readiness Levels (ERLs): A Scale for Assessing Educational Coursework and Training Modules", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2017-68086

Landen Bowen, Mary I Frecker, Timothy W Simpson and Rebecca A Strzelec, 2017, "A Framework for the Design and Optimization of Self-Folding Structures", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2017-68203

Sangjin Jung, Timothy W Simpson and Christina Bloebaum, 2017, "Multi-Level Value-Driven Design Approaches for Product Family Design", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2017-67432

Sangjin Jung, Timothy W Simpson and Christina Bloebaum, 2017, "Value-Driven Design Using Discipline-Based Decomposition for a Family of Front-Loading Washing Machines", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2017-67631

Simon Miller, Timothy W Simpson and Michael A Yukish, 2017, "Two Applications of Design as a Sequential Decision Process", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2017-68150

Timothy W Simpson, 2017, "Product Family and Product Platform Benchmarking with Commonality and Variety Indices", ASME International Design Engineering Technical Conferences, ASME, pp. Paper No. DETC2017-67500

Jivtesh Khurana, Shantanab Dinda and Timothy W Simpson, 2017, "Active-Z Printing: A New Approach to Increasing 3D Printed Part Strength", Proceedings of the 28th Annual International Solid Freeform Fabrication Symposium, University of Texas-Austin, pp. 1627-1644

David Saltzman, Michael Bichnevicius, Stephen Lynch, Timothy W Simpson, Edward Reutzel, Corey Dickman and Richard Martukanitz, 2017, "Experimental Comparison of a Traditionally Built versus Additively Manufactured Aircraft Heat Exchanger", 55th AIAA Aerospace Sciences Meeting - AIAA SciTech Forum, AIAA, pp. AIAA-2017-0902

B. McDonnell, X.J. Guzman, M. Dolack, Timothy W Simpson and John M Cimbala, 2016, "3D Printing in the Wild: A Preliminary Investigation of Air Quality in College Maker Spaces", University of Texas at Austin, pp. 2456-2469, http://sffsymposium.engr.utexas.edu/sites/default/files/2016/196-McDonnell.pdf

S.N.R. Kantanareddy, Timothy W Simpson, Zoubeida Ounaies and Mary I Frecker, 2016, "3D Printing of Shape Changing Polymer Structures: Design and Characterization of Materials", University of Texas-Austin, pp. 2224-2235

D.B. Saint John, Timothy W Simpson, Sanjay B Joshi, L.Q. Chen, M. Qu, J.D. Rowatt and Y. Lou, 2016, "A Preliminary Evaluation of Variability due to Build Location and Powder Feedstock in Additive Manufacture of Inconel 718 using Laser-Based Powder Bed Fusion", University of Texas-Austin, pp. 542-557

Sangjin Jung, Timothy W Simpson, C.L. Bloebaum, H. Kannan, E. Winer and B.L. Mesmer, 2016, "A Value-Driven Design Approach to Optimize a Family of Front-loading Washing Machines", ASME, pp. Paper No. IDETC2016-60240

S.N. Reddy, V Maranan, Timothy W Simpson, Todd Palmer and C.J. Dickman, 2016, "Application of Topology Optimization and Design for Additive Manufacturing Guidelines on an Automotive Component", ASME, pp. Paper No. IDETC2016-59719

M. Barclift, Sanjay B Joshi, Timothy W Simpson and C.J. Dickman, 2016, "Cost Modeling and Deprecitation for Reused Powder Feedstock in Powder Bed Fusion Additive Manufacturing", University of Texas-Austin, pp. 2007-2028

C.S. Lefky, A.R. Nassar, Timothy W Simpson and O.J. Hildreth, 2016, "Dissolvable Metal Supports for 3D Direct Metal Printing", University of Texas-Austin, pp. 1604-1610

M. Unal, Gordon P Warn and Timothy W Simpson, 2016, "Introducing an Index to Quantify the Shape of a Pareto Front in Support of Many-Objective Trade Space Exploration", ASME, pp. Paper No. IDETC2016-59716

D.B. Saint John, Timothy W Simpson, Sanjay B Joshi, L.Q. Chen, M. Qu, J.D. Rowatt and Y. Lou, 2016, "Morphology and Grain Texture in As-Deposited and Heat Treated Inconel 718 Structures Produced using Laser-Based Powder Bed Fusion", University of Texas-Austin, pp. 530-541

Sangjin Jung and Timothy W Simpson, 2016, "Multidisciplinary Analysis and Product Family Optimization of Front-Loading Washing Machines", ASME, pp. Paper No. IDETC2016-59520

B.-M. Roh, Timothy W Simpson, Soundar R Tirupatikumara, Panagiotis Michaleris, P. Witherell and I. Assouroko, 2016, "Ontology-Based Laser and Thermal Metamodels for Metal-Based Additive Manufacturing", ASME, pp. Paper No. IDETC2016-60233

J. Bartolai, Timothy W Simpson and R. Xie, 2016, "Predicting Strength of Thermoplastic Polymer Parts Produced using Additive Manufacturing", University of Texas-Austin, pp. 951-963

M. Woodruff and Timothy W Simpson, 2016, "Product Discovery with Many-Objective Visual Analytics", ASME, pp. Paper No. IDETC2016-60239

M. Woodruff and Timothy W Simpson, 2016, "Product Exploration with Many-Objective Visual Analytics", ASME, pp. Paper No. IDETC2016-60232

M. Woods, Nicholas A. Meisel, Timothy W Simpson and C.J. Dickman, 2016, "Redesigning a Reaction Control Thruster for Metal-Based Additive Manufacturing: A Case Study in Design for Additive Manufacturing", ASME, pp. Paper No. IDETC2016-59722

S.N.R Kantanareddy, Timothy W Simpson, Sanjay B Joshi, C.J. Dickman, El-Amine Lehtihet and Byeong-Min Roh, 2016, "Saving Weight with Metallic Lattice Structures: Design Challenges with a Real-World Example", University of Texas-Austin, pp. 2139-2154

J. Menold, Kathryn W Jablokow, Timothy W Simpson and E.A. Waterman, 2016, "The Prototype for X (PFX) Framework: Assessing Its Impact on Students’ Prototyping Awareness", ASEE, pp. Paper ID #16011, https://www.asee.org/public/conferences/64/papers/16011/view

J. Menold, Timothy W Simpson and Kathryn W Jablokow, 2016, "The Prototype for X (PFX) Framework: Assessing the Impact on Desirability, Feasibility, and Viability of End Designs", ASME, pp. Paper No. IDETC2016-60225

S.N. Reddy, I. Ferguson, Mary I Frecker, Timothy W Simpson and C.J. Dickman, 2016, "Topology Optimization Software for Additive Manufacturing: Analysis of Current Capabilities and a Real-World Example", ASME, pp. Paper No. IDETC2016-59718

R. Lynn, Christopher Javellana Saldana, T. Kurfess, S.N.R. Kantareddy, Timothy W Simpson, Kathryn W Jablokow, T. Tucker, S. Tedia and C.B. Williams, 2016, "Toward Rapid Manufacturability Analysis Tools for Engineering Design Education", Society of Manufacturing Engineers (SME)

R. Lynn, Kathryn W Jablokow, N. Reddy, Christopher Javellana Saldana, T. Tucker, Timothy W Simpson, T. Kurfess and C.B. Williams, 2016, "Using Rapid Manufacturability Analysis Tools to Enhance Design-for-Manufacturing Training in Engineering Education", ASME, pp. Paper No. IDETC2016-59295

P Witherell, S C Feng, Timothy W Simpson, D B Saint John, P Michaleris, Z K Liu, L Q Chen and R Martukanitz, 2014, "Toward metamodels for composable and reusable additive manufacturing process models"

T D Culbertson and Timothy W Simpson, 2014, "Using shape grammars to identify salient features in support of product family design"

J Cho, S R Miller, Timothy W Simpson and S B Shooter, 2014, "Effects of over-the-counter medication product family packaging design on knowledge acquisition and consumer preferences"

S Jung, Timothy W Simpson and O Asikoglu, 2014, "Using interfaces to drive module definition: Investigating the impact of a new design dependency measure"

S W Miller, Timothy W Simpson, M A Yukish, G Stump, B L Mesmer, E B Tibor, C L Bioebaum and E H Winer, 2014, "Toward a value-driven design approach for complex engineered systems using trade space exploration tools"

A Crivaro, R Sheridan, M Frecker, Timothy W Simpson and P Von Lockette, 2014, "Bistable snapthrough compliant mechanism using magneto active elastomer actuation"

C Lauff, Timothy W Simpson, M Frecker, Z Ounaies, S Ahmed, P Von Lockette, R Strzelec and R Sheridan, 2014, "Differentiating bending from folding in origami engineering using active materials"

L Bowen, M Frecker, Timothy W Simpson and P Von Lockette, 2014, "A dynamic model of magneto-active elastomer actuation of the waterbomb base"

K Lewis, D Moore-Russo, P Cormier, A McKenna, A Johnson, A Carberry, Timothy W Simpson, C Tucker, G Kremer, S Zappe, S Shooter, C Kim, J Tranquillo, C Williams, L McNair, M Paretti, W Chen and D Gatchell, 2014, "Assessment of product archaeology as a framework for contextualizing engineering design"

M. Samperi, E. Chernow, Timothy W Simpson, S. Joshi, M. Talbot and R. Martukanitz, 2013, "Towards a process workflow for designing and fabricating parts using additive manufacturing", 2013 RAPID Conference and Exposition, Society of Manufacturing Engineers

E. Chernow, M. Samperi, S. Joshi, Timothy W Simpson and R. Martukanitz, 2013, "A process planning framework for LENS metal additive manufacturing", Proceedings of the 2013 Industrial and Systems Engineering Research Conference, Institute of Industrial Engineers

Timothy W Simpson, E. Kisenwether and G. R. Pierce, 2013, "Driving entrepreneurial innovation through the Learning Factory: The power of interdisciplinary capstone design projects", ASME Design Engineering Technical Conferences - Design Education Conference

K. Otto, K. Hölttä-Otto and Timothy W Simpson, 2013, "Linking 10 years of modular design research: Alternative methods and tool chain sequences to support product platform design", ASME Design Engineering Technical Conferences - Design Automation Conference

M. J. Woodruff, Timothy W Simpson and P. M. Reed, 2013, "Diagnostic analysis of metamodels' multivariate dependencies and their impacts in many-objective design optimization", ASME Design Engineering Technical Conferences - Design Automation Conference

S. W. Miller, Timothy W Simpson, M. A. Yukish, L. A. Bennett, S. E. Lego and G. M. Stump, 2013, "Preference construction, sequential decision making, and trade space exploration", ASME Design Engineering Technical Conferences - Design Automation Conference

K. Lewis, D. Moore-Russo, P. Cormier, A. Olewink, G. Kremer, C. Tucker, Timothy W Simpson and O. Ashour, 2013, "The assessment of product archaeology as a platform for contextualizing engineering design", ASME Design Engineering Technical Conferences - Design Education Conference

Y. Han, C. S. Tucker, Timothy W Simpson and E. Davidson, 2013, "A data mining trajectory clustering methodology for modeling indoor design space utilization", ASME Design Engineering Technical Conferences - Design Automation Conference

Timothy W Simpson, M. Shaffer, E. C. Halpin, A. D. Vashaw and D. H. Evensen, 2013, "Integrating engineering and arts through capstone design: Creative campus meets the Learning Factory", 120th ASEE Annual Conference & Exposition

G. Stump, Timothy W Simpson, S. Oggianu and R. Khire, 2012, "Toward an interactive visualization environment for architecting microgrids in ultra low energy communities", ASME Design Engineering Technical Conferences - Design Automation Conference

K. Kang, Timothy W Simpson and G. E. Okudan, 2012, "Exposing students to cultural issues in rice cooker design through product archaeology", ASME Design Engineering Technical Conferences - Design Education Conference

G. Nadadur, W. Kim, A. R. Thomson, M. B. Parkinson and Timothy W Simpson, 2012, "Strategic product design for multiple global markets", ASME Design Engineering Technical Conferences - Design Theory & Methodology Conference

G. Nadadur, M. B. Parkinson and Timothy W Simpson, 2012, "Application of the generational variety index: A retrospective study of iPhone evolution", ASME Design Engineering Technical Conferences - Design Automation Conference

J. Chang, K. Jung, S. K. Moon, W. Kim, A. Freivalds, Timothy W Simpson and S. P. Baik, 2012, "Determination of optimal location of circuit board and battery on 3D glasses by considering nose load and subjective discomfort", Proceedings of the Human Factors and Ergonomics Society 56th Annual Meeting, pp. 1877-1881

D. Hadka, P. M. Reed and Timothy W Simpson, 2012, "Diagnostic assessment of the Borg MOEA for many-objective product family design problems", 2012 IEEE World Congress on Computational Intelligence, pp. 986-995

Timothy W Simpson, G. E. Okudan, O. Ashour and K. Lewis, 2011, "From product dissection to product archaeology: Exposing students to global, economic, environmental, and societal impact through competitive and collaborative digs", ASME International Design Technical Conferences - Design Education Conference, pp. DETC2011/DEC-48298

Timothy W Simpson and J. R. R. A. Martins, 2011, "Multidisciplinary design optimization for complex engineered systems design: State of the research and state of the practice—Report from a National Science Foundation workshop", ASME International Design Technical Conferences - Design Automation Conference, pp. DETC2011/DAC-47237

S. K. Moon, K. J. Park and Timothy W Simpson, 2011, "Platform strategy for product family design using particle swarm optimization", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. DETC2011/DAC-48060

K. Lewis, D. Moore-Russo, O. Ashour, G. Kremer, Timothy W Simpson, X. Neumeyer, A. McKenna and W. Chen, 2011, "Teaching the global, economic, environmental, and societal foundations of engineering design through product archaeology", ASEE Annual Conference & Exhibition

X. Yan, M. Qiao, Timothy W Simpson, J. Li and X. Zhang, 2011, "LIVE: A work-centered approach to support visual analytics of multi-dimensional engineering design data with interactive visualization and data-mining", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. DETC2011/DAC-48333

Daniel E Willis, Timothy W Simpson, Rebecca L Henn, Samuel T Hunter, Matthew B Parkinson, David J Celento, Russell R Barton and Sandeep Purao, 2010, "From border skirmishes to strategic alliances: Barriers to design innovation and collaboration between architects and engineers, and an opportunity for moving beyond them", pp. 54-64

Timothy W Simpson, M. Parkinson, D. Celento, W. Chen, A. McKenna, E. Colgate, D. A. Norman, P. Papalambros, B. Roth and L. Leifer, 2010, "Navigating the barriers to interdisciplinary design education: Lessons learned from the NSF design workshop series", ASME Design Engineering Technical Conferences - Design Education Conference, pp. DETC2010/DEC-28575

Timothy W Simpson, A. Bobuk, L. A. Slingerland, B. Donaldson and K. Reichard, 2010, "Validating the generational variety index (GVI) through product family optimization: A preliminary study", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. DETC2010/DAC-28573

A. Jain, R. Sarnobat and Timothy W Simpson, 2010, "Development of a product family analysis toolkit for systematic benchmarking", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. DETC2010/DAC-28269

K. Grantham, G. Okudan, Timothy W Simpson and O. Ashour, 2010, "A study on situated cognition: Product dissection's effect on redesign activities", ASME Design Engineering Technical Conferences - Design Education Conference, pp. DETC2010/DEC-28334

V. Godthi, J. J.-W. Yoo, C. B. Arnold and Timothy W Simpson, 2010, "Product design using interface-based module description", ASME Design Engineering Technical Conferences - Design Theory & Methodology Conference, pp. DETC2010/DTM-28850

Timothy W Simpson, S. T. Hunter, C. Bryant-Arnold, M. Parkinson, R. R. Barton, D. Celento and J. Messner, 2009, "Interdisciplinary graduate design programs: Results and recommendations from a NSF workshop", ASME Design Engineering Technical Conferences - Design Education Conference, DETC2009/DEC-86699

D. Wolf, Timothy W Simpson and X. Zhang, 2009, "A preliminary study of novice and expert users' decision-making procedures during visual trade space exploration", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2009/DAC-87924

X. Zhang, Timothy W Simpson, M. Frecker and G. Lesieutre, 2009, "Supporting trade space exploration of multi-dimensional data with interactive multi-scale nested clustering and aggregation", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2009/DAC-87045

S. K. Moon, Timothy W Simpson, J. Shu and S. R. T. Kumara, 2009, "A strategic platform design method for developing customized families of services", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2009/DAC-87280

J. J.-W. Yoo, S. R. T. Kumara and Timothy W Simpson, 2009, "Modular product design using cyberinfrastructure for global manufacturing", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2009/DAC-86899

F. Alizon, J. Fu, Timothy W Simpson, S. B. Joshi and S. Shooter, 2008, "Assessing functional and shape differentiation with a family of products", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2008/DAC-49428

F. Alizon, T. J. Marion, S. B. Shooter and Timothy W Simpson, 2008, "Product family design: Strategic principles to choose between product-driven and platform-driven processes", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2008/DAC-49429

F. Alizon, S. B. Shooter and Timothy W Simpson, 2008, "Henry Ford and the Model T: Lessons for product platforming and mass customization", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2008/DAC-49420

D. Carlsen, M. Malone, J. Kollat and Timothy W Simpson, 2008, "Evaluating the performance of visual steering commands for user-guided Pareto frontier sampling during trade space exploration", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2008/DAC-49681

C. D. Congdon, D. E. Carlsen, Timothy W Simpson and J. D. Martin, 2008, "Improving the performance of visual steering commands for multi-dimensional trade space exploration", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2008/DAC-49684

R. S. Farrell and Timothy W Simpson, 2008, "Improving cost effectiveness in an existing product line using component product platforms", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2008/DAC-49544

R. Khire, J. Wang, T. Bailey, Y. Lin and Timothy W Simpson, 2008, "Product family commonality selection through interactive visualization", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2008/DAC-49335

Y. Lin, D. Luo, T. Bailey, R. Khire, J. Wang and Timothy W Simpson, 2008, "Model validation and error modeling to support sequential sampling", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2008/DAC-49336

A. F. McKenna, W. Chen and Timothy W Simpson, 2008, "Exploring the impact of virtual and physical dissection activities on students' understanding of engineering design principles", ASME Design Engineering Technical Conferences - Design Education Conference, DETC2008/DEC-49783

S. K. Moon, Timothy W Simpson and S. R. T. Kumara, 2008, "A strategic module-based platform design method for developing customized products in dynamic and uncertain market environments", ASME Design Engineering Technical Conferences - Design Automation Conference, DETC2008/DAC-49683

D. B. Spencer, Timothy W Simpson and M. A. Yukish, 2008, "Trade space exploration using visual steering and multidimensional data visualization", NSF Engineering Research and Innovation Conference

Timothy W Simpson, 2008, "CAREER: Benchmarking product family design alternatives", NSF Engineering Research and Innovation Conference

F. Alizon, S. B. Shooter and Timothy W Simpson, 2007, "Recommending a platform leveraging strategy based on the homogeneous or heterogeneous nature of a product line", ASME Design Engineering Technical Conferences-Design Automation Conference

F. Alizon, C. Williams, S. B. Shooter and Timothy W Simpson, 2007, "Merge-based design: A new method for managing variety and improving customization", ASME Design Engineering Technical Conferences-Design Automation Conference

M. Devondorf, K. Lewis, Timothy W Simpson, R. B. Stone and W. C. Regli, 2007, "Evaluating the use of cyberinfrastructure in the classroom to enhance product dissection", ASME Design Engineering Technical Conferences-Design Theory & Methodology Conference

T. J. Marion and Timothy W Simpson, 2007, "On the use of a simplified new product development process in an early stage firm", ASME Design Engineering Technical Conferences-Design Theory & Methodology Conference, pp. DETC2007/DTM-34696

S. K. Moon, Timothy W Simpson and S. R. T. Kumara, 2007, "A process model and data mining to support designing families of services", ASME Design Engineering Technical Conferences-Design Automation Conference, DETC2007/DAC-34687

G. Stump, S. Lego, M. Yukish, Timothy W Simpson and J. A. Donndelinger, 2007, "Visual steering commands for trade space exploration: User-guided sampling with example", ASME Design Engineering Technical Conferences-Design Automation Conference, DETC2007/DAC-34684

H. J. Thevenot and Timothy W Simpson, 2007, "A method for benchmarking product family design alternatives", ASME Design Engineering Technical Conferences-Design Automation Conference

Timothy W Simpson, K. E. Lewis, R. B. Stone and W. Regli, 2007, "Using cyberinfrastructure to enhance product dissection in the classroom", 2007 Industrial Engineering Research Conference

S. K. Moon, Timothy W Simpson and S. R. T. Kumara, 2007, "An agent-based customized recommender system for product and service family design", 2007 Industrial Engineering Research Conference

H. J. Thevenot, J. Nanda and Timothy W Simpson, 2006, "Redesigning product families using heuristics and shared ontological component information", IEEE International Conference on Information Reuse and Integration, pp. 330-335

F. Alizon, S. B. Shooter and Timothy W Simpson, 2006, "Provide relevant knowledge to specify product design project needs", IEEE International Conference on Information Reuse and Integration, pp. 460-465

F. Alizon, J. Nanda, S. B. Shooter and Timothy W Simpson, 2006, "Increasing design search relevancy using statistical methods in conjunction with ontologies", IEEE International Conference on Information Reuse and Integration, pp. 268-273

A. Sahin, J. P. Terpenny, S. B. Shooter, R. B. Stone and Timothy W Simpson, 2006, "A method to evaluate relative instructional efficiencies of design activities for product platform planning", ASEE Annual Conference & Exposition

H. Lukman, F. Alizon, A. Sahin, S. B. Shooter, J. P. Terpenny, Timothy W Simpson, R. B. Stone and S. R. T. Kumara, 2006, "An inter-university collaborative undergraduate research/learning experience for product platform planning: Year 2", ASEE Annual Conference & Exposition

E. D. Steva, E. N. Rice, T. J. Marion, Timothy W Simpson and R. B. Stone, 2006, "Two methodologies for identifying product platform elements within an existing set of products", ASME Design Engineering Technical Conferences-Design Automation Conference, DETC2006/DAC-99234

H. Thevenot, E. D. Steva, G. E. Okudan and Timothy W Simpson, 2006, "A multi-attribute utility theory-based approach to product line consolidation and selection", ASME Design Engineering Technical Conferences-Design Theory & Methodology Conference, DETC2006/DTM-99506

H. J. Thevenot and Timothy W Simpson, 2006, "A comprehensive metric for evaluating commonality in a product family", ASME Design Engineering Technical Conferences-Design AutomationConference, DETC2006/DAC992658

R. S. Farrell and Timothy W Simpson, 2006, "A method to improve platform leveraging in a market segmentation grid within an existing product line", ASME Design Engineering Technical Conferences-Design Automation Conference, DETC2006/DAC-99469

M. J. Scott, J. C. G. Arenillas, S. Valliyappan, Timothy W Simpson and V. Allada, 2006, "Towards a suite of problems for comparison of product platform design methods: A proposed classification", ASME Design Engineering Technical Conferences-Design Automation Conference, DETC2006/DAC-99289

V. Allada, A. Choudhury, P. K. Pakala, Timothy W Simpson, M. J. Scott and S. Valliyappan, 2006, "Product platform problem taxonomy: Classification and identification of benchmark problems", ASME Design Engineering Technical Conferences-Design Automation Conference, DETC2006/DAC-99569

A. Sahin, J. Terpenny, S. B. Shooter, R. E. Stone and Timothy W Simpson, 2006, "Evaluating relative instructional effectiveness and efficiencies of design activities for product platform planning", ASME Design Engineering Technical Conferences-Design Theory & Methodology Conference, DETC2006/DTM-99517

F. Alizon, S. B. Shooter and Timothy W Simpson, 2006, "Assessing and increasing product and family differentiation in the market", ASME Design Engineering Technical Conferences-Design Automation Conference, DETC2006/DAC-99538

F. Alison, S. B. Shooter and Timothy W Simpson, 2006, "Assessing commonality and diversity within a product family", ASME Design Engineering Technical Conferences-Design Automation Conference, DETC2006/DAC-99499

F. Alison, S. B. Shooter and Timothy W Simpson, 2006, "Improving an existing product family based on commonality/diversity, modularity, and cost", ASME Design Engineering Technical Conferences-Design for Manufacturing and the Life Cycle Conference, DETC2006/DFMLC-99536

M. R. Bohm, R. B. Stone, Timothy W Simpson and E. D. Steva, 2006, "Introduction to a data schema: The inner workings of a design repository", ASME Design Engineering Technical Conferences & Computers and Information in Engineering Conference, DETC2006-CIE-99518

T. J. Marion, M. Freyer, Timothy W Simpson and R. A. Wysk, 2006, "Design for mass customization in the early stages of product development", ASME Design Engineering Technical Conferences-Design for Manufacturing and the Life Cycle Conference, DETC2006/DFMLC-99641

S. K. Moon, S. R. T. Kumara and Timothy W Simpson, 2006, "Date mining and fuzzy clustering to support product family design", ASME Design Engineering Technical Conferences-Design Automation Conference, DETC2006/DAC-99287

S. K. Moon, S. R. T. Kumara and Timothy W Simpson, 2006, "A multi-agent system for modular platform design in a dynamic electronic market environment", ASME Design Engineering Technical Conferences & Computers and Information in Engineering Conference, DETC2006/CIE-99286

Timothy W Simpson and H. Thevenot, 2005, "Using Product Dissection to Integrate Product Family Design Research into the Classroom and Improve Students' Understanding of Platform Commonality", ASME Design Engineering Technical Conferences - Design Theory and Methodology Conference, pp. Paper No. DETC2005/DTM-84639

H. Thevenot, J. Nanda and Timothy W Simpson, 2005, "A Methodology to Support Product Family Redesign Using Genetic Algorithm and Commonality Indices", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. Paper No. DETC2005/DAC-84927

J. Nanda, Timothy W Simpson, S. B. Shooter and R. B. Stone, 2005, "A Unified Information Model for Product Family Design Management", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. Paper No. DETC2005/DAC-84869

J. Nanda, H. Thevenot and Timothy W Simpson, 2005, "Product Family Representation and Redesign: Increasing Commonality using Formal Concept Analysis", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. Paper No. DETC2005/DAC-8418

J. Park and Timothy W Simpson, 2005, "An Activity-Based Costing Method for Product Family Design in the Early Stages of Development", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. Paper No. DETC2005/DAC-84817

A. Srinivasan, J. P. Terpenny, Timothy W Simpson, S. R. T. Kumara, S. B. Shooter and R. B. Stone, 2005, "Online Case Studies and a Process Description for Product Platform Planning", ASME Design Engineering Technical Conferences - Design Theory & Methodology Conference, pp. Paper No. DETC2005/DTM-85338

S. Akundi, Timothy W Simpson and P. M. Reed, 2005, "Multi-Objective Design Optimization for Product Platform and Product Family Design Using Genetic Algorithms", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. Paper No. DETC2005/DAC-84905

B. Yannou, F. Moreno, H. Thevenot and Timothy W Simpson, 2005, "Faster Generation of Feasible Design Points", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. Paper No. DET2005/DAC-85449

Timothy W Simpson, R. B. Stone, S. B. Shoter, J. P. Terpenny and S. R. T. Kumara, 2005, "An Inter-University Collaborative Undergraduate Research/Learning Experience for Product Platform Planning", 2005 ASEE Annual Conference & Exposition

A. Srinivasan, J. P. Terpenny, S. B. Shooter, R. Stone, Timothy W Simpson and S. R. T. Kumara, 2005, "An Online Learning Tool for Product Platform Planning", 2005 ASEE Annual Conference & Exposition

J. D. Martin and Timothy W Simpson, 2005, "A methodology to manage uncertainty during system-level conceptual design", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. Paper No. DETC2005/DAC-84984

M. Van Wie, R. Stone, H. Thevenot and Timothy W Simpson, 2004, "Examination of Platform and Differentiating Elementss in Product Design", ASME International Mechanical Engineering Conference, pp. Paper No. IMECE-60665

L. Rothrock, K. Barron, Timothy W Simpson, M. Frecker, R. R. Barton and C. Ligetti, 2004, "Applying the Proximity Compatibility and the Control-Display Compatibility Principles toward Engineering Design", Human Factors and Ergonomics Society's 48th Annual Meeting, pp. 411-415

J. Martin and Timothy W Simpson, 2004, "On Using Kriging Models as Probabilistic Models in Design", 2004 SAE World Congress, pp. Paper No. 2004-01-0430

K. Barron, Timothy W Simpson, L. Rothrock, M. Frecker, R. R. Barton and C. Ligetti, 2004, "Graphical User Interfaces for Engineering Design: Impact of Response Delay and Training on User Performance", ASME Design Engineering Technical Conference-Design Theory & Methodology Conference, pp. Paper No. DETC2004/DTM-57085

J. D. Martin and Timothy W Simpson, 2004, "On the Use of Kriging Models to Approximate Deterministic Computer Models", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. aper No. DETC2004/DAC-57300

J. Mulberger and Timothy W Simpson, 2004, "Advancements in a Web-based Framework for Product Platform Optimization and Visualization", ASME Design Engineering Technical Conferences-Computers and Information in Engineering, pp. Paper No. DETC2004/CIE-57688

J. Nanda, H. Thevenot, Timothy W Simpson, S. R. T. Kumara and S. B. Shooter, 2004, "Exploring Semantic Web Technologies for Product Family Modeling", ASME Design Engineering Technical Conferences - Computers and Information in Engineering, pp. Paper No. DETC2004/CIE-57683

J. Park and Timothy W Simpson, 2004, "Development of a Production Cost Estimation Framework for Product Family Design", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. ASME Paper No. DETC2004/DAC-57175

S. B. Shooter, Timothy W Simpson, S. R. T. Kumara, R. B. Stone and J. P. Terpenny, 2004, "Toward an Information Management Infrastructure for Product Family Planning and Platform Customization", ASME Design Engineering Technical Conferences-Design Automation Conference, pp. Paper No. DETC2004/DAC-57430

H. Thevenot and Timothy W Simpson, 2004, "A Comparison of Commonality Indices for Product Family Design", ASME Design Engineering Technical Conferences - Design Automation Conference, pp. Paper No. DETC2004/DAC-57141

M. Meckesheimer, R. Barton, Timothy W Simpson and A. Booker, 2001, "Computationally Inexpensive Metamodel Assessment Strategies", 2001 ASME Design Technical Conferences - Design Theory and Methodology (DTM'01) Conference, DETC2001/DAC-21028

R. Farrell and Timothy W Simpson, 2001, "Improving Commonality in Custom Products Using Product Families", 2001 ASME Design Technical Conferences - Design Automation Conference, DETC2001/DAC-21125

C. McAllister and Timothy W Simpson, 2001, "Multidisciplinary Robust Design Optimization of an Internal Combustion Engine", 2001 ASME Design Technical Conferences - Design Automation Conference, DETC2001/DAC-21124

Timothy W Simpson, D. Mediros, S. Joshi, R. Wysk and A. Lehtihet, 2001, "IME, Inc. - A New Course for Integrating Design, Manufacturing, and Production into the Engineering Curriculum", 2001 Annual ASEE Conference

M. Frecker, Timothy W Simpson, J. Goldberg, R. Barton, B. Holewinski and G. Stump, 2001, "Integrating Design Research into the Classroom: Experiments in Two Graduate Courses", 2001 Annual ASEE Conference

M. Meckesheimer, R. Barton and Timothy W Simpson, 2001, "Experimental Design Issues for Simultaneous Fitting of Forward and Inverse Metamodels", Fourth St. Petersburg Workshop, INFORMS

T. Litzinger, J. Wise, S. Lee, Timothy W Simpson and S. Joshi, 2001, "Assessing Readiness for Lifelong Learning", 2001 Annual ASEE Conference

R. Barton, M. Meckesheimer and Timothy W Simpson, 2000, "Experimental Design Issues for Simultaneous Fitting of Forward and Inverse Metamodels", 2000 ASME Design Engineering Technical Conferences - Design Automation Conference, pp. Paper No. DETC2000/DAC-14282

A. Messac, M. Martinez and Timothy W Simpson, 2000, "Effective Product Family Design Using Physical Programming and the Product Platform Concept Exploration Method", 2000 ASME Design Engineering Technical Conferences - Design Automation Conference, pp. Paper No. DETC2000/DAC-14252

R. Nayak, W. Chen and Timothy W Simpson, 2000, "A Variation-Based Methodology for Product Family Design", 2000 ASME Design Engineering Technical Conferences - Design Automation Conference, pp. Paper No. DETC2000/DAC-14264

B. Kulvatunyou, Timothy W Simpson, E. Halberg and B. Hodge, 2000, "Parametric Modeling Approach for Refiner Plate Design and Production", American Foundrymen's Society 104th Casting Congress, pp. Paper No. 00-88

Timothy W Simpson, J. Maier and F. Mistree, 1999, "A Product Platform Concept Exploration Method for Product Family Design", 1999 ASME Design Engineering Technical Conferences - Design Theory and Methodology - DTM'99, pp. Paper No. DETC99/DTM-8761

Timothy W Simpson, J. Allen and F. Mistree, 1998, "Spatial Correlation Metamodels for Global Approximation in Structural Design Optimization", 1998 ASME Design Engineering Technical Conferences - Advances in Design Automation, pp. Paper No. DETC98/DAC-5613

G. Hernandez, Timothy W Simpson, J. Allen, F. Bascaran, L. Avila and F. Salinas, 1998, "Robust Design of Product Families for Make-to-Order Systems", 1998 ASME Design Engineering Technical Conferences - Advances in Design Automation Conference

Timothy W Simpson, J. Peplinski, P. Koch and J. Allen, 1997, "On the Use of Statistics in Design and the Implications for Deterministic Computer Experiments", 1997 ASME Design Engineering Technical Conferences - Design Theory and Methodology - DTM'97, pp. Paper No. DETC97/DTM-3881

W. Chen, Timothy W Simpson, J. Allen and F. Mistree, 1996, "Use of Design Capability Indices to Satisfy a Ranged Set of Design Requirements", 1996 ASME Design Engineering Technical Conferences - Advances in Design Automation, pp. Paper No. 96-DETC/DAC-1090

Timothy W Simpson, D. Rosen, J. Allen and F. Mistree, 1996, "Metrics for Assessing Design Freedom and Information Certainty in the Early Stages of Design", 1996 ASME Design Engineering Technical Conference - Design Theory and Methodology - DTM’96, pp. Paper No. 96-DETC/DTM-1521

Timothy W Simpson, M. Bauer, F. Mistree and J. Allen, 1995, "Implementation of DFA in Conceptual and Embodiment Design Using Decision Support Problems", 1995 ASME Design Engineering Technical Conferences - Advances in Design Automation, 82, (1), pp. 119-126

Magazines/Trade Publications

Timothy W Simpson, 2023, "Changes to AM Over the Last Six Years Have Been Remarkable", Modern Machine Shop, 95, (9), pp. 32,34

Timothy W Simpson, 2023, "AM Is Leading the Digitization of Manufacturing", Modern Machine Shop, 95, (8), pp. 32,34

Timothy W Simpson, 2022, "How Thin Can I Make It?", Modern Machine Shop, 94, (8), pp. 32,34

Timothy W Simpson, 2022, "Reframing Post-Processing", Modern Machine Shop, 94, (9), pp. 28,30

Timothy W Simpson, 2022, "Additive Manufacturing is Growing Up", Modern Machine Shop, 94, (10), pp. 30,32

Timothy W Simpson, 2022, "Does Manufacturing Need Additive?", Modern Machine Shop, 94, (11), pp. 28,30

Timothy W Simpson, 2022, "AM to the Rescue—Again", Modern Machine Shop, 94, (12), pp. 30,32

Timothy W Simpson, 2022, "Is Additive Freeing Designers or Aiding Manufacturers?", Modern Machine Shop, 95, (1), pp. 35-36

Timothy W Simpson, 2022, "Lightweight Components: A Paradox for Machining", Modern Machine Shop, 95, (2), pp. 30,32

Timothy W Simpson, 2022, "Thinking “Inside Out” and “Outside In”", Modern Machine Shop, 95, (3), pp. 40,42

Timothy W Simpson, 2022, "Productivity Gains Set to Transform AM", Modern Machine Shop, 95, (4), pp. 32,34

Timothy W Simpson, 2022, "Reaching for a New Plateau", Modern Machine Shop, 95, (5), pp. 30,32

Timothy W Simpson, 2022, "Creating a Multi-Level Approach to Additive Manufacturing", Modern Machine Shop, 95, (6), pp. 30,32

Timothy W Simpson, 2022, "Practical Uses of AM Can Save Time and Money", Modern Machine Shop, 95, (7), pp. 28,30

Timothy W Simpson, 2022, "AM Is Leading the Digitization of Manufacturing", Modern Machine Shop, 95, (8), pp. 32,34

Timothy W Simpson, 2021, "6 Questions When Designing for Additive Manufacturing", Modern Machine Shop, 93, (8), pp. 28,30

Timothy W Simpson, 2021, "Avoiding Costs while Adding Value with DFAM", Modern Machine Shop, 93, (9), pp. 28,30

Timothy W Simpson, 2021, "Beginning the AM Journey: An Uphill Battle", Modern Machine Shop, 93, (10), pp. 28,30

Timothy W Simpson, 2021, "Beginning the AM Journey: One Part to Begin the Path", Modern Machine Shop, 93, (11), pp. 28,30

Timothy W Simpson, 2021, "Profitable AM Is Not an Oxymoron", Modern Machine Shop, 93, (12), pp. 28,30

Timothy W Simpson, 2021, "Plotting a Pathway to Profitable AM", Modern Machine Shop, 93, (13), pp. 28,30

Timothy W Simpson, 2021, "Balancing MfAM and DfAM for Metal Additive Manufacturing", Modern Machine Shop, 93, (14), pp. 28,30

Timothy W Simpson, 2021, "The Challenge with AM Process Substitution", Modern Machine Shop, 93, (15), pp. 28,30

Timothy W Simpson, 2021, "One Small Step for Metals, One Giant Leap for Additive Manufacturing", Modern Machine Shop, 93, (16), pp. 28,30

Timothy W Simpson, 2021, "Another Giant Leap for AM – New Standards", Modern Machine Shop, 93, (17), pp. 30,32

Timothy W Simpson, 2021, "Adopting a Growth Mindset for Additive Manufacturing", Modern Machine Shop, 93, (18), pp. 28,30

Timothy W Simpson, 2021, "Say R.I.P. to AM Risks", Modern Machine Shop, 94, (7), pp. 28,30

Timothy W Simpson, 2020, "The Value of Design for Additive Manufacturing", Modern Machine Shop, 93, (7), pp. 28,30

Timothy W Simpson, 2020, "Industrializing AM: A Simple Cost Equation", Modern Machine Shop, 93, (6), pp. 32,34

Timothy W Simpson, 2020, "Getting Ready for Additive Manufacturing", Modern Machine Shop, 93, (5), pp. 32,34

Timothy W Simpson, 2020, "The Harsh Realities of Additive Manufacturing", Modern Machine Shop, 93, (4), pp. 32,34

Timothy W Simpson, 2020, "Ramping Up for a Fight", Modern Machine Shop, 93, (3), pp. 30,32

Timothy W Simpson, 2020, "Protecting Your Ideas for Protecting Others", Modern Machine Shop, 93, (2), pp. 28,30

Timothy W Simpson, 2020, "The Race for PPE", Modern Machine Shop, 93, (1), pp. 32,34

Timothy W Simpson, 2020, "Additive Manufacturing in the Age of COVID-19", Modern Machine Shop, 92, (12), pp. 38,40

Timothy W Simpson, 2020, "How a Worksheet Can Elevate AM’s Success", Modern Machine Shop, 92, (11), pp. 38,40

Timothy W Simpson, 2020, "Cards, Anyone?", Modern Machine Shop, 92, (10), pp. 36,38

Timothy W Simpson, 2020, "Being Creative with AM", Modern Machine Shop, 92, (9), pp. 28,30

Timothy W Simpson, 2020, "Additive Manufacturing Standards", Modern Machine Shop, 92, (8), pp. 28,30

Timothy W Simpson, 2019, "Additive Manufacturing with Sheet Lamination", Modern Machine Shop, 92, (7), pp. 38,40

Timothy W Simpson, 2019, "Material Jetting: It’s Like Printing, Just in 3D", Modern Machine Shop, 92, (6), pp. 40,42

Timothy W Simpson, 2019, "Material Extrusion: Now with Metal", Modern Machine Shop, 92, (5), pp. 36,38

Timothy W Simpson, 2019, "AM Via Material Extrusion", Modern Machine Shop, 92, (4), pp. 38,40

Timothy W Simpson, 2019, "How Vat Photopolymerization Started It All", Modern Machine Shop, 92, (3), pp. 40,42

Timothy W Simpson, 2019, "Additive Manufacturing and Metal Casting", Modern Machine Shop, 92, (2), pp. 36,38

Timothy W Simpson, 2019, "AM for Hard Tooling", Modern Machine Shop, 92, (1), pp. 38,40

Timothy W Simpson, 2019, "Additive + Subtractive = Hybrid Manufacturing", Modern Machine Shop, 91, (12), pp. 36,38

Timothy W Simpson, 2019, "Additive Manufacturing with Wire", Modern Machine Shop, 91, (11), pp. 38,40

Timothy W Simpson, 2019, "The “Machinist’s Eraser” and Other Cool Uses for DED", Modern Machine Shop, 91, (10), pp. 38,40

Timothy W Simpson, 2019, "What is Directed Energy Deposition?", Modern Machine Shop, 91, (9), pp. 36,38

Timothy W Simpson, 2019, "Additive Manufacturing for Large Parts", Modern Machine Shop, 91, (8), pp. 34,36

Timothy W Simpson, 2019, "Crawl, Walk, Run Your Way into Additive Manufacturing", Manufacturing Technology Insights

Timothy W Simpson, 2018, "Tooling Not Required", Modern Machine Shop, 90, (10), pp. 38,40

Timothy W Simpson, 2018, "Why Does My AM Part Cost So Much?", Modern Machine Shop, 90, (11), pp. 38,40

Timothy W Simpson, 2018, "Why Do the Bills Keep Coming?", Modern Machine Shop, 90, (12), pp. 38,40

Timothy W Simpson, 2018, "The Many Possibilities of AM", Modern Machine Shop, 91, (1), pp. 40,42

Timothy W Simpson, 2018, "Reuniting Manufacturing Design for Effective AM", Modern Machine Shop, 91, (2), pp. 42,44

Timothy W Simpson, 2018, "Machinability of Additively Manufactured Support Structures", Modern Machine Shop, 91, (3), pp. 40,42

Timothy W Simpson, 2018, "Milling Studies Cover Additive-Part Supports", Modern Machine Shop, 91, (4), pp. 40,42

Timothy W Simpson, 2018, "Why Is My Surface So Rough?", Modern Machine Shop, 91, (5), pp. 40,42

Timothy W Simpson, 2018, "Can My Machine Tool Access My Support Structure?", Modern Machine Shop, 91, (6), pp. 42,44

Timothy W Simpson, 2018, "Smoothing Out the Rough Edges", Modern Machine Shop, 91, (7), pp. 42,44

Timothy W Simpson, 2018, "Manufacturing for Design, Not the Other Way Around", Modern Machine Shop, 90, (9), pp. 38,40

Timothy W Simpson, 2018, "Lightweighting with Lattices", Modern Machine Shop, 90, (8), pp. 38,40

Timothy W Simpson, 2017, "Functional Prototyping", Modern Machine Shop, 90, (7), pp. 66,68

Timothy W Simpson, 2017, "Are AM Parts as Strong?", Modern Machine Shop, 90, (6), pp. 70,72

Timothy W Simpson, 2017, "Drill, Mill, Grind...", Modern Machine Shop, 90, (5), pp. 66,68

Timothy W Simpson, 2017, "Will My AM Part Explode?", Modern Machine Shop, 90, (4), pp. 66,68

Timothy W Simpson, 2017, "Easing into AM", Modern Machine Shop, 90, (3), pp. 66,68

Timothy W Simpson, 2017, "Where Do I Start with AM?", Modern Machine Shop, 90, (2), pp. 66,68

Timothy W Simpson, 2017, "Tradeoffs with AM", Modern Machine Shop, 90, (1), pp. 66,68

Timothy W Simpson, 2017, "Why Are Holes Circular?", Modern Machine Shop, 89, (12), pp. 68,70

Timothy W Simpson, 2017, "Wanted: Flexible Machine Shops and Open-Minded Pros", Modern Machine Shop, 89, (11), pp. 70,72

Manuscripts

L Bowen, K Springsteen, H Feldstein, M Frecker, Timothy W Simpson and P Von Lockette, 2014, "Development and validation of a dynamic model of magneto-active elastomer actuation of the origami waterbomb base", ASME Journal of Mechanisms and Robotics

Timothy W Simpson and H. J. Theveonot, , "Using Product Dissection to Integrate Product Family Design Research into the Classroom and Improve Students' Understanding of Platform Commonality", International Journal of Engineering Education

R. Farrell and Timothy W Simpson, , "Product Platform Design to Improve Commonality in Custom Products", Journal of Intelligent Manufacturing

R. Caffrey, Timothy W Simpson, R. Henderson and E. Crawley, , "The Strategic Issues with Implementing Open Avionics Platforms for Spacecraft"

Timothy W Simpson, , "Product Platform Design and Customization: Status and Promise", Artificial Intelligence for Engineering Design, Analysis and Manufacturing

Timothy W Simpson and H. J. Thevenot, , "Using product dissection to integrate product family design research into the classroom and improve students' understanding of platform commonality", International Journal of Engineering Education

M. Van Wie, R. Stone, H. Thevenot and Timothy W Simpson, , "Examination of platform and differentiating elements in product design", Journal of Intelligent Manufacturing

T. J. Marion, H. J. Thevenot and Timothy W Simpson, , "How outsourcing can drive companies away from platform: Two examples", International Journal of Production Research

J. Park and Timothy W Simpson, , "A method for assessing the profitability of platform-based products", International Journal of Production Research

H. Thevenot, E. D. Steva, G. E. Okudan and Timothy W Simpson, , "A multi-attribute utility theory-based approach to product line consolidation and selection", ASME Journal of Mechanical Design

F. Gao, G. Xiao and Timothy W Simpson, , "Module-scale-based product platform planning", Research in Engineering Design

S. K. Moon, Timothy W Simpson and S. R. T. Kumara, , "A module-based service model for mass customization: Service family design", IIE Transactions

D. D. Jordan, D. B. Spencer, Timothy W Simpson, M. A. Yukish and G. M. Stump, , "Optimal continuous-thrust trajectories via visual trade space exploration", Journal of the Astronautical Sciences

S. K. Moon, Timothy W Simpson and S. R. T. Kumara, , "A data mining methodology in product family design, encyclopedia of data warehousing and mining"

F. Alizon, S. B. Shooter and Timothy W Simpson, , "Assessing and improving commonality and diversity"

Other

E Tibor, S Miller, G Stump, C Bioebaum, C Mesmer, Timothy W Simpson and M A Yukish, 2014, "Visualization of system decomposition in a value-based framework"

Z. Pirmoradi, G. G. Wang and Timothy W Simpson, 2013, "A review of recent literature in product family design and platform-based product development", pp. 1-46

S. K. Moon and Timothy W Simpson, 2013, "Platform valuation for product family design", pp. 179-198

A. Khajavirad, J. J. Michalak and Timothy W Simpson, 2013, "Solving the joint product platform selection and product family design problem: An efficient decomposed multiobjective genetic algorithm with generalized commonality", pp. 271-294

R. Khire, J. Wang, T. Bailey, Y. Lin and Timothy W Simpson, 2013, "Product family commonality selection using optimization and interactive visualization", pp. 449-471

G. Nadadur, M. B. Parkinson and Timothy W Simpson, 2013, "Application of the generational variety index: A retrospective study of iPhone evolution", pp. 737-751

Timothy W Simpson, R. J. Jiao, Z. Siddique and K. Hölttä-Otto, 2013, "Product family and product platform design: Looking forward", pp. 777-791

M. Roodruff, D. Hadka, P. M. Reed and Timothy W Simpson, 2012, "Auto-adaptive search capabilities of the new Borg MOEA: A detailed comparison on alternative product family design problem formulations"

O. Asikoglu and Timothy W Simpson, 2012, "A new method for evaluating design dependencies in product architectures"

X. Yan, M. Qiao, Timothy W Simpson, J. Li and Z. Zhang, 2012, "Work-centered visual analytics to support multidisciplinary design analysis and optimization"

R. Shah, P. M. Reed and Timothy W Simpson, 2011, "Many-objective evolutionary optimization and visual analytics for product family design", pp. 137-159

S. K. Moon, Timothy W Simpson, J. Sh and, S. R. T. Kumara , 2011, "A platform identification method for service family design using a process model and a clustering method", pp. 151-170

L. A. Slingerland, A. Bobuk and Timothy W Simpson, 2010, "Product family optimization using a multidimensional data visualization approach", pp. AIAA-2010-9031

Timothy W Simpson, S. Brennan, L. A. Slingerland, A. Bobuk, D. Logan and K. Reichard, 2010, "From user requirements to commonality specifications: An integrated approach to product family design"

O. Asikoglu and Timothy W Simpson, 2010, "A new approach for evaluating design dependencies in product architectures", pp. AIAA-2010-9028

G. Stump, J. D. Martin and Timothy W Simpson, 2010, "Using visualization tools to create Kriging models", pp. AIAA-2010-9030

S. K. Moon and Timothy W Simpson, 2010, "Platform valuation for product family design in uncertain market environment", pp. AIAA-2010-9227

S. K. Moon, Timothy W Simpson and S. R. T. Kumara, 2010, "Market-based strategic platform design for a product family using a Bayesian game", 2, pp. 338-356

S. K. Moon, X. Chang, J. Terpenny, Timothy W Simpson and S. R. T. Kumara, 2010, "Toward a knowledge support system for product family design", 2, pp. 297-318

S. K. Moon, Timothy W Simpson and S. R. T. Kumara, 2010, "A multi-agent system for recommending customized families of products", pp. 35-48

Timothy W Simpson, D. B. Spencer, M. A. Yukish and G. Stump, 2008, "Visual steering commands and test problems to support research in trade space exploration"

Timothy W Simpson, V. Toropov, V. Balabanov and F. A. C. Viana, 2008, "Design and analysis of computer experiments in multidisciplinary design optimization: A review"

V. Balabanov, S. Hambric, S. Young and Timothy W Simpson, 2008, "Axisymmetric vehicle nose shape optimization"

Timothy W Simpson, D. E. Carlsen, C. D. Congdon, G. Stump and M. A. Yukish, 2008, "Trade space exploration of a wing design problem using visual steering and multi-dimensional data visualization"

D. D. Jordan, D. B. Spencer, Timothy W Simpson, M. A. Yukish and G. M. Stump, 2008, "Optimal spacecraft trajectories via visual trade space exploration"

A. Khajavirad, J. Michalek and Timothy W Simpson, 2007, "A decomposed genetic algorithm for solving the joint product family optimization program"

K. Leis, M. Castellani, Timothy W Simpson, R. Stone, W. Wood and W. Regli, 2007, "Fundamentals and applications of reserve engineering in engineering design", pp. 127-159

Timothy W Simpson, 2007, "Making your career competitive: Tips for rebounding when your career is rejected", pp. 12-17

J. D. Martin and Timothy W Simpson, 2006, "A Monte Carlo method for reliability-based design optimization"

D. Kumar, W. Chen and Timothy W Simpson, 2006, "A market-driven approach to the design of platform-based product families"

R. A. Khire, A. Messac and Timothy W Simpson, 2006, "Optimal design of product families using selection-integrated optimization (SIO) methodology"

Timothy W Simpson, P. Iyer, K. Barron, L. Rothrock, M. Frecker, R. R. Barton and M. Meckensheimer, 2005, "Metamodel-Driven Interfaces for Engineering Design: Impact of Delay and Problem Size on User Performance", pp. Paper No. AIAA-2005-2060

M. A. Yukish and Timothy W Simpson, 2005, "Analysis of an O(n2) Algorithm for Identifying Pareto Points in Multi-Dimensional Data Sets", pp. Paper No. AIAA-2005-1812

S. E. Gano, J. E. Renaud, J. D. Martin and Timothy W Simpson, 2005, "Update Strategies for Kriging Models for Using in Variable Fidelity Optimization", pp. Paper No. AIAA-2005-2057

Timothy W Simpson, Z. Siddique and J. Jiao, 2005, "Platform-Based Product Family Development: Introduction and Overview", pp. 1-14

T. J. Marion and Timothy W Simpson, 2005, "Platform Leveraging Strategies and Market Segmentation", pp. 107-129

H. J. Thevenot and Timothy W Simpson, 2005, "Commonality Indices for Assessing Product Families", pp. 107-129

Timothy W Simpson, 2005, "Methods for Optimizing Product Platforms and Product Families: Overview and Classification", pp. 133-156

J. Park and Timothy W Simpson, 2005, "An Activity-Based Costing Method to Support Product Family Design", pp. 335-358

J. S. Lamancusa and Timothy W Simpson, 2004, "The Learning Factory - 10 Years of Impact at Penn State"

J. Park and Timothy W Simpson, 2004, "Development of a Production Cost Estimation Framework for Product Family Design"

Timothy W Simpson and M. Meckesheimer, 2004, "Evaluation of a Graphical Design Interface for Design Space Visualization"

G. Stump, M. Yukish, Timothy W Simpson, E. N. Harris and J. J. O'Hara, 2004, "Trade Space Exploration of Satellite Datasets Using A Design by Shopping Paradigm"

C. Ligetti and Timothy W Simpson, 2004, "Metamodel Development for Graphical Design Interfaces: Results from a Manufacturing Simulation Experiment"

J. D. Martin and Timothy W Simpson, 2004, "A Monte Carlo Simulation of the Kriging Model"

C. D. McAllister, Timothy W Simpson, K. Lewis and A. Messac, 2004, "Integrating Linear Physical Programming within Collaborative Optimization for Multiobjective Multidisciplinary Design Optimization"

G. Stump, M. Yudish and Timothy W Simpson, 2004, "The Advanced Trade Space Visualizer: An Engineering Decision-Making Tool"

M. Yukish and Timothy W Simpson, 2004, "Analysis of an Algorithm for Identifying Pareto Points in Multi-Dimensional Data Sets"

Timothy W Simpson, M. Frecker and R. Barton, 2002, "Impact of Metamodel-Driven Visualization on Design"

E. Halberg, A. Belegundu, M. Yukish and Timothy W Simpson, 2000, "Attribute-Based Multidisciplinary Optimization of Undersea Vehicles", pp. Paper No. AIAA-2000-4865

R. Jin, W. Chen and Timothy W Simpson, 2000, "Comparative Studies of Metamodeling Techniques under Multiple Modeling Criteria"

C. McAllister, Timothy W Simpson and M. Yukish, 2000, "Goal Programming Applications in Multidisciplinary Design Optimization"

A. Messac, M. Martinez and Timothy W Simpson, 2000, "Introduction of a Product Family Penalty Function Using Physical Programming"

B. Wilson, D. Cappelleri, M. Frecker and Timothy W Simpson, 2000, "Efficient Pareto Frontier Exploration Using Surrogate Approximations"

M. Yukish, L. Bennett and Timothy W Simpson, 2000, "Requirements on MDO Imposed by the Undersea Weapons Conceptual Design Problem", pp. Paper No. AIAA-2000-4816

D. Cappelleri, M. Frecker and Timothy W Simpson, 2000, "Optimal Design of a PZT Bimorph Actuator for Minimally Invasive Surgery", 3984, pp. 321-325

P. Zink, D. DeLaurentis, M. Hale, V. Volovol, D. Schrage, J. Craig, R. Fulton, F. Mistree, D. Mavris, W. Chen, P. Rohl, K. Lewis, P. Koch, C. Cesnik and Timothy W Simpson, 2000, "New Approaches to HSCT Multidisciplinary Design and Optimization", pp. Paper No. IEEE-351-00

Timothy W Simpson and F. Mistree, 1999, "A Concept Exploration Method for Product Family Design", pp. 371-378

Timothy W Simpson, W. Chen, J. Allen and F. Mistree, 1999, "Use of the Robust Concept Exploration Method to Facilitate the Design of a Family of Products", pp. 247-278

Timothy W Simpson, T. Mauery, J. Korte and F. Mistree, 1998, "Comparison of Response Surface and Kriging Models for Multidisciplinary Design Optimization", 1, pp. 381-391

Timothy W Simpson, U. Lautenschlager and F. Mistree, 1998, "Mass Customization in the Age of Information: The Case for Open Engineering Systems", pp. 49-71

Timothy W Simpson, W. Chen, J. Allen and F. Mistree, 1997, "Designing Ranged Sets of Top-Level Design Specifications for a Family of Aircraft: An Application of Design Capability Indices", pp. Paper No. AIAA-97-5513

Timothy W Simpson, W. Chen, J. Allen and F. Mistree, 1996, "Conceptual Design of a Family of Products Through the Use of the Robust Concept Exploration Method", 2, pp. 1535-1545

• ASME Design Theory & Methodology Award, ASME, 2022

• ASME Ruth and Joel Spira Outstanding Design Educator Award, ASME, 2021

• ASME Dedicated Service Award, ASME, 2020

• Best Paper Award, ASME International Design Engineering Technical Conferences - Design Education Conference, August 2019

• Teaching and Learning with Technology Impact Award, Penn State University, 2019

• World Class Engineering Faculty Award, Penn State Engineering Alumni Society, 2019

• 2018 ASME Design Automation Outstanding Research Award, ASME, 2018

• 2018 ASME Robert E. Abbott Award for Outstanding Service to Design Engineering Division, ASME, 2018

• 2018 ASME Journal of Mechanical Design Reviewer Award, ASME, 2018

• 2016 Penn State “We Are” Award for “Contributions to 3D Printing across the University”, Penn State, 2016

• 2014 ASME Ben C. Spark Award, ASME, 2014

• 2011 ASEE Fred Merryfield Design Award, ASEE, 2011

• 2009 ASME Fellow, ASME, 2009

Service to Penn State:

Service to External Organizations: