Contact Information

Position: Associate Professor Office:      MARC Building, Room 260                                Georgia Institute of Technology       813 Ferst Drive      Atlanta, Georgia 30332 Email: schoi@me.gatech.edu URL:   http://www.me.gatech.edu/faculty/choi

Research Interests

Dr. Seung-Kyum Choi joined the Woodruff School in 2006 as an assistant professor. Dr. Choi's research interests include structural reliability, probabilistic mechanics, statistical approaches to the design of structural systems, multidisciplinary design optimization, and the decision support process for complex engineered systems. At Georgia Tech, he has conducted a challenging research effort to quantify uncertainty for the analytical certification of aerospace and underwater vehicles. The results of this effort include the development of state-of-the-art numerical techniques in statistical methods, as well as structural analysis methods that incorporate innovative uncertainty quantification techniques. Dr. Choi's current research focuses on developing robust simulation and decision-support tools that can help manage complex engineered systems that involve the design of material structures and multifunctional products. Dr. Choi is the principal author of a graduate level textbook (Reliability-Based Structural Design, Springer, 2007). This book presents the fundamentals and applications of structural reliability, stochastic finite element methods, reliability analysis via stochastic expansion, stochastic sampling methods, and optimization under uncertainty. He is a member of AIAA and a member of Tau Beta Pi, the engineering honor society. He is a reviewer of the AIAA Journal, the ASME Journal, and the Journal of Structural and Multidisciplinary Optimization on the topics of uncertainty quantification and design optimization.

Publications

Textbook

Journal Articles

• Choi, S.-K., Grandhi, R.V., and Canfield, R.A., “Structural Reliability under non-Gaussian Stochastic Behavior,” Computers and Structures, Vol. 82, May 2004, pp.1113-1121.
• Choi, S.-K., Grandhi, R.V., Canfield, R.A. and Pettit, C.L., “Polynomial Chaos Expansion with Latin Hypercube Sampling for Estimating Response Variability,” AIAA Journal, Vol. 42, No. 6, June 2004, pp. 1191-1198.
• Choi, S.-K., Grandhi, R.V., and Canfield, R.A., “Robust Design of Mechanical Systems via Stochastic Expansion,” International Journal of Materials and Product Technology, Vol. 25, 2006, pp. 127-143.
• Choi, S.-K., Canfield, R.A, and Grandhi, R.V., “Estimation of Structural Reliability for Gaussian Random Fields,” Structure & Infrastructure Engineering, Vol. 2, No., 3-4, Dec. 2006, pp. 161-173.
• Schaefer, D., Panchal, J.H., Choi, S.-K., and Mistree F., “Strategic Design of Engineering Education for the Flat World,” International Journal of Engineering Education, Vol. 24, No. 2, 2008, pp. 274-282.
• Choi, S.-K., “Reliability Assessment using Stochastic Local Regression,” International Journal of Reliability and Safety, Vol. 3, Nos 1/2/3, 2009, pp. 267-285.
• Ruderman, A., Choi, S.-K., Patel, J., Kumar, A., and Allen J.K., “Simulation-based Robust Design of Multi-scale Products,” Journal of Mechanical Design, Vol. 132, No. 10, 2010, pp. 101003 (12 pages).
• Choi, S.-K., Hagan, C., Krohe, J., and Schaefer, D., "A Rapid Prototyping Experiment for Undergraduate Laboratory Courses", ASEE Computers in Education Journal ,Vol. 20, No. 4, Oct.-Dec. 2010, pp. 82-90.
• Choi, S.-K., and Patel, J., “Optimal Design of Cellular Structures under Random Fields,” Journal of Engineering Design, Vol., 22, No. 9, 2011, pp. 651-668.
• Kumar, A., Choi, S.-K., and Goksel, L., "Tolerance Allocation of Assemblies Using Fuzzy Comprehensive Evaluation and Decision Support Processes," International Journal of Advanced Manufacturing Technology, Vol. 55, Nos. 1-4, 2011, pp. 379-391.
• Ruderman, A., Choi, S.-K., and Jiao, J., "Simulation-based Conjoint Ranking for Optimal Decision Support Process under Aleatory Uncertainty," Journal of Intelligent Manufacturing, 2011, DOI: 10.1007/s10845-011-0610-9.
• Rippel, M., Choi, S.-K., Mistree F., and Allen, Janet, "Probabilistic Collocation for Simulation-based Robust Concept Exploration," Engineering Optimization, iFirst, 2011, 1-19.
• Stone, T., Choi, S.-K., and Amarchinta, H., “Dynamic Modeling and Parameter Estimation for Impact Analysis of Packaging Design,” ASME Early Career Technical Journal, Vol. 10, 2011, pp. 6-13.
• Patel, J., and Choi, S.-K., "Classification Approach for Reliability-based Topology Optimization using Probabilistic Neural Networks," Structural and Multidisciplinary Optimization, Vol. 45, 2012, pp. 529-543.
• Kim, E.S., and Choi, S.-K., "Failure Analysis of Connecting Bolt in Collapsed Tower Crane," Fatigue and Fracture of Engineering Materials and Structures (accepted for publication).
• Patel, J., and Choi, S.-K., “An Enhanced Classification Approach for Reliability Estimation of Structural Systems,” Journal of Intelligent Manufacturing.(accepted for publication).

Conference Papers

• Choi, S.-K., Grandhi R. V., and Canfield R. A., “Stochastic Finite Element Analysis for Uncertainty Quantification,” 27th Annual Dayton-Cincinnati Aerospace Science Symposium,” Dayton, Ohio, 2002.
• Choi, S.-K., Grandhi R. V., and Canfield R. A., “Reliability Analysis of a Large Computational Model using Polynomial Chaos Expansion,” SAE 2003 World Congress, 2003-01-0465, Detroit MI, March 3-6, 2003.
• Choi, S.-K., Grandhi, R.V., Canfield, R.A., and Pettit, C.L., “Polynomial Chaos Expansion to Uncertainty Analysis using Latin Hypercube Sampling,” 44th AIAA,, Structural Dynamics, and Material Conference, AIAA 2003-1749, Norfolk, VA, April 2003.
• Choi, S.-K., Grandhi R. V., and Canfield R. A., “Propagation of non-Gaussian Stochastic Behavior using the Polynomial Chaos Expansion,” Second M.I.T. Conference on Computational Fluid and Solid Mechanics, M.I.T Cambridge, MA. June, 2003.
• Choi, S.-K., Grandhi R. V., and Canfield R. A., “Propagation of Uncertainty in Complex Structural Systems using Stochastic Approach,” AIAA/ICAS International Air and Space Symposium: The Next 100 Years, Dayton, OH, July 2003.
• Choi, S.-K., Grandhi R. V., and Canfield R. A., “Stochastic Modeling and Optimization of Complex Structural Systems,” 29th Annual Dayton-Cincinnati Aerospace Science Symposium, Dayton, Ohio, 2004.
• Choi, S.-K., Grandhi R. V., and Canfield R. A., “Optimization of Stochastic Mechanical Systems using Polynomial Chaos Expansion,” 10th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, Albany, NY, Aug. 2004.
• Choi, S.-K., Grandhi R. V., and Canfield R. A., “Reliability Assessment of Structural Systems with Random Fields,” 30th Annual Dayton-Cincinnati Aerospace Science Symposium, Dayton, Ohio, 2005.
• Schaefer, D., Panchal, J.H., Choi, S.-K., and Mistree, F., “Strategic Design of Engineering Education for the Flat World,” Proceedings of the MUDD Design Workshop VI: Design and Engineering Education in a Flat World, Harvey Mudd College, Claremont, CA, USA, May 23-25, 2007.
• Choi, S.-K., “Structural Integrity Prediction via Stochastic Local Regression,” 3rd International Workshop on Reliable Engineering Computing, Savannah, GA, USA, February 20-22, 2008.
• Choi, S.-K., “Reliability Assessment via Stochastic Expansion with Local Regression Method,” 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference and 10th AIAA Non-Deterministic Analysis Conference, AIAA-2008-1982, Schaumburg, IL, April 7-10, 2008.
• Patel, J., Ruderman, A., and Choi, S.-K., “Optimal Synthesis of Mesostructured Materials under Uncertainty,” 50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference and 5th AIAA Multidisciplinary Design Optimization Specialist Conference, Palm Springs, CA, May 4-7, 2009.
• Ruderman, A., Patel, J., Kumar, A., Allen J., and Choi, S.-K., “A Multi-scale Design for a Robust Hydrogen Storage Tank,” 2009 ASME International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, San Diego, CA, USA, August 30 - September 2, 2009.
• Patel, J., and Choi, S.-K., “Classification Approach for Reliability-based Topology Optimization using Probabilistic Neural Networks,” 51th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference and 6th AIAA Non-Deterministic Approaches Conference, Orlando, FL, April 12-15, 2010.
• Hyder, A.C., Choi, S.-K., and D. Schaefer, “Remotely Controlled Laboratory Experiments: Creation and Examples,” SIEDS ’10 – 2010 IEEE Systems and Information Engineering Design Symposium, Charlottesville, Virginia, April 23, 2010.
• Kumar, A., Goksel, L., and Choi, S.-K., “Tolerance Allocation of Assemblies using Fuzzy Comprehensive Evaluation and Decision Support Processes,” 2010 ASME International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, Montreal, Quebec, Canada, August 15-18, 2010.
• Rippel, M., Choi, S.-K., Allen, J., and Mistree, F., “A Simulation-based Robust Concept Exploration Method,” 2010 ASME International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, Montreal, Quebec, Canada, August 15-18, 2010.
• Rippel, M., Choi, S.-K., Allen, J., and Mistree, F., “A Simulation-based Robust Concept Exploration Method,” 13th AIAA/ISSMO Multidisciplinary Analysis Optimization Conference, Fort Worth, Texas, September 13-15, 2010.
• Patel, J., and Choi, S.-K., “Classification-based Reliability Assessment with Semi-supervised Learning,” 52th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference and 13th AIAA Non-Deterministic Approaches Conference, Denver, CO, April 4-7, 2011.
• Stone, T., Choi, S.-K., and Amarchinta, H., "Dynamic Modeling and Parameter Estimation for Impact Analysis of Packaging Design," ASME Early Career Technical Conference, Atlanta, GA, November 4-5, 2011.
• Patel, J., and Choi, S.-K., “Classification-based Reliability Assessment with Semi-supervised Learning,” 53th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Material Conference and 14th AIAA Non-Deterministic Approaches Conference, Honolulu, Hawaii, April 23-26, 2012.

Student Guidance

Ph.D. Students