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Journal Articles

Uncertainty Reduction for Model Error Detection in Multiphase Shock Tube Simulation

Chanyoung Park, Samaun Nili, Justin T. Mathew, Frederick Ouellet, Rahul Koneru, Nam H. Kim, Sivaramakrishnan Balachandar, Raphael T. Haftka
Journal: Journal of Verification, Validation and Uncertainty Quantification
Publisher: ASME
Article Type: Research-Article
J. Verif. Valid. Uncert. September 2021, 6(3): 031004.
Paper No: VVUQ-19-1027
https://doi.org/10.1115/1.4051407
Published Online: July 6, 2021
View Article titled, Uncertainty Reduction for Model Error Detection in Multiphase Shock Tube Simulation
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Topics: Errors, Particulate matter, Shock tubes, Simulation, Uncertainty, Uncertainty quantification
Proceedings Papers

Design Sensitivity Analysis for the Meshfree Shell Structure

Kyung K. Choi, Nam H. Kim, Mark E. Botkin
Proc. ASME. IDETC-CIE2001, Volume 2A: 27th Design Automation Conference, 323-332, September 9–12, 2001
Publisher: American Society of Mechanical Engineers
Paper No: DETC2001/DAC-21042
https://doi.org/10.1115/DETC2001/DAC-21042
View Paper titled, Design Sensitivity Analysis for the Meshfree Shell Structure
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Topics: Design sensitivity analysis, Shells
Journal Articles

Estimating Effect of Additional Sample on Uncertainty Reduction in Reliability Analysis Using Gaussian Process

Sangjune Bae, Chanyoung Park, Nam H. Kim
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. November 2020, 142(11): 111706.
Paper No: MD-19-1811
https://doi.org/10.1115/1.4047002
Published Online: June 16, 2020
View Article titled, Estimating Effect of Additional Sample on Uncertainty Reduction in Reliability Analysis Using Gaussian Process
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Topics: Event history analysis, Failure, Probability, Reliability, Uncertainty, Batteries
Proceedings Papers

Estimation of Uncertainty Change of Reliability in Adaptive Sampling Under Prediction Uncertainty of Gaussian Process

Sangjune Bae, Nam H. Kim
Proc. ASME. IDETC-CIE2019, Volume 2B: 45th Design Automation Conference, V02BT03A035, August 18–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: DETC2019-97472
https://doi.org/10.1115/DETC2019-97472
View Paper titled, Estimation of Uncertainty Change of Reliability in Adaptive Sampling Under Prediction Uncertainty of Gaussian Process
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Topics: Reliability, Uncertainty, Probability, Failure, Simulation
Journal Articles

General-Surrogate Adaptive Sampling Using Interquartile Range for Design Space Exploration

Yiming Zhang, Nam H. Kim, Raphael T. Haftka
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. May 2020, 142(5): 051402.
Paper No: MD-19-1049
https://doi.org/10.1115/1.4044432
Published Online: November 20, 2019
View Article titled, General-Surrogate Adaptive Sampling Using Interquartile Range for Design Space Exploration
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Topics: Uncertainty, Design, Errors
Journal Articles

Forensic Uncertainty Quantification for Experiments on the Explosively Driven Motion of Particles

Kyle Hughes, S. Balachandar, Nam H. Kim, Chanyoung Park, Raphael Haftka, Angela Diggs, Donald M. Littrell, Jason Darr
Journal: Journal of Verification, Validation and Uncertainty Quantification
Publisher: ASME
Article Type: Research-Article
J. Verif. Valid. Uncert. December 2018, 3(4): 041004.
Paper No: VVUQ-18-1019
https://doi.org/10.1115/1.4043478
Published Online: May 13, 2019
View Article titled, Forensic Uncertainty Quantification for Experiments on the Explosively Driven Motion of Particles
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Topics: Forensic sciences, Particulate matter, Explosives
Journal Articles

Epistemic Uncertainty Stemming From Measurement Processing—A Case Study of Multiphase Shock Tube Experiments

Chanyoung Park, Justin Matthew, Nam H. Kim, Raphael T. Haftka
Journal: Journal of Verification, Validation and Uncertainty Quantification
Publisher: ASME
Article Type: Research-Article
J. Verif. Valid. Uncert. December 2018, 3(4): 041001.
Paper No: VVUQ-18-1018
https://doi.org/10.1115/1.4042814
Published Online: March 7, 2019
View Article titled, Epistemic Uncertainty Stemming From Measurement Processing—A Case Study of Multiphase Shock Tube Experiments
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Topics: Particulate matter, Uncertainty, X-rays, Image processing, Shock tubes, Uncertainty quantification, Calibration
Journal Articles

System Reliability-Based Design Optimization Under Tradeoff Between Reduction of Sampling Uncertainty and Design Shift

Sangjune Bae, Nam H. Kim, Seung-gyo Jang
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. April 2019, 141(4): 041403.
Paper No: MD-18-1308
https://doi.org/10.1115/1.4041859
Published Online: January 11, 2019
View Article titled, System Reliability-Based Design Optimization Under Tradeoff Between Reduction of Sampling Uncertainty and Design Shift
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Topics: Design, Failure, Probability, Uncertainty, Sensitivity analysis, Reliability-based optimization
Proceedings Papers

Least Bumpiness Calibration With Extrapolative Bias Correction

Chanyoung Park, Nam H. Kim, Raphael T. Haftka
Proc. ASME. IDETC-CIE2018, Volume 2A: 44th Design Automation Conference, V02AT03A020, August 26–29, 2018
Publisher: American Society of Mechanical Engineers
Paper No: DETC2018-86163
https://doi.org/10.1115/DETC2018-86163
View Paper titled, Least Bumpiness Calibration With Extrapolative Bias Correction
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Topics: Calibration, Errors, Risk, Interpolation, Parameter estimation
Proceedings Papers

Uncertainty Quantification of Reliability Analysis Under Surrogate Model Uncertainty Using Gaussian Process

Sangjune Bae, Chanyoung Park, Nam H. Kim
Proc. ASME. IDETC-CIE2018, Volume 2B: 44th Design Automation Conference, V02BT03A055, August 26–29, 2018
Publisher: American Society of Mechanical Engineers
Paper No: DETC2018-85541
https://doi.org/10.1115/DETC2018-85541
View Paper titled, Uncertainty Quantification of Reliability Analysis Under Surrogate Model Uncertainty Using Gaussian Process
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Topics: Event history analysis, Uncertainty, Uncertainty quantification, Reliability, Chaos, Gaussian distribution, Simulation
Journal Articles

Sensitivity-Based Parameter Calibration and Model Validation Under Model Error

Na Qiu, Chanyoung Park, Yunkai Gao, Jianguang Fang, Guangyong Sun, Nam H. Kim
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. January 2018, 140(1): 011403.
Paper No: MD-17-1317
https://doi.org/10.1115/1.4038298
Published Online: November 9, 2017
View Article titled, Sensitivity-Based Parameter Calibration and Model Validation Under Model Error
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Topics: Calibration, Errors
Proceedings Papers

Management of Sampling Uncertainty Using Conservative Estimate of Probability in Bayesian Network

Sangjune Bae, Nam H. Kim, Seung-gyo Jang
Proc. ASME. IDETC-CIE2017, Volume 2B: 43rd Design Automation Conference, V02BT03A053, August 6–9, 2017
Publisher: American Society of Mechanical Engineers
Paper No: DETC2017-67620
https://doi.org/10.1115/DETC2017-67620
View Paper titled, Management of Sampling Uncertainty Using Conservative Estimate of Probability in Bayesian Network
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Topics: Probability, Uncertainty, Design, Safety, Failure, Sensitivity analysis, Errors, Shapes, Uncertainty quantification
Journal Articles

Function Prediction at One Inaccessible Point Using Converging Lines

Yiming Zhang, Chanyoung Park, Nam H. Kim, Raphael T. Haftka
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. May 2017, 139(5): 051402.
Paper No: MD-16-1568
https://doi.org/10.1115/1.4036130
Published Online: March 21, 2017
View Article titled, Function Prediction at One Inaccessible Point Using Converging Lines
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Topics: Approximation, Drag (Fluid dynamics), Interpolation, Uncertainty, Errors
Proceedings Papers

Investigation of the Effectiveness of Multi-Fidelity Surrogates on Extrapolation

Chanyoung Park, Raphael T. Haftka, Nam H. Kim
Proc. ASME. IDETC-CIE2016, Volume 2B: 42nd Design Automation Conference, V02BT03A057, August 21–24, 2016
Publisher: American Society of Mechanical Engineers
Paper No: DETC2016-60279
https://doi.org/10.1115/DETC2016-60279
View Paper titled, Investigation of the Effectiveness of Multi-Fidelity Surrogates on Extrapolation
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Topics: Algebra, Calibration, Errors, Fittings, Hull, Interpolation, Risk, Scalars, Simulation
Proceedings Papers

A Dynamic Speed vs. Accuracy Trade-Off (DSAT) Paradigm for Measuring and Training Grip Force Control for Stroke Population

Nam H. Kim, Michael Wininger, Gail Forrest, Thomas Edwards, William Craelius
Proc. ASME. SBC2009, ASME 2009 Summer Bioengineering Conference, Parts A and B, 727-728, June 17–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: SBC2009-206306
https://doi.org/10.1115/SBC2009-206306
View Paper titled, A Dynamic Speed vs. Accuracy Trade-Off (DSAT) Paradigm for Measuring and Training Grip Force Control for Stroke Population
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Topics: Force control, Tradeoffs, Engines, Kinematics, Motors
Proceedings Papers

Equivalent Damage Growth Parameters Using a Simplified Model

Alexandra Coppe, Matthew J. Pais, Raphael T. Haftka, Nam H. Kim
Proc. ASME. IDETC-CIE2011, Volume 2: 31st Computers and Information in Engineering Conference, Parts A and B, 1317-1328, August 28–31, 2011
Publisher: American Society of Mechanical Engineers
Paper No: DETC2011-48801
https://doi.org/10.1115/DETC2011-48801
View Paper titled, Equivalent Damage Growth Parameters Using a Simplified Model
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Topics: Damage, Service life (Equipment), Structural health monitoring, Stress, Fracture (Materials), Errors, Finite element methods, Geometry, Random noise
Proceedings Papers

Bayesian Approach for Fatigue Life Prediction From Field Data

Nam H. Kim, Sriram Pattabhiraman, Lonnie A. Houck, III
Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 695-703, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-23780
https://doi.org/10.1115/GT2010-23780
View Paper titled, Bayesian Approach for Fatigue Life Prediction From Field Data
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Topics: Design, Fatigue life, Gas turbines, Hardware, Machinery, Maintenance, Manufacturing, Probability, Risk, Risk analysis
Journal Articles

Comparison Between Elastic Foundation and Contact Force Models in Wear Analysis of Planar Multibody System

Saad Mukras, Nam H. Kim, Nathan A. Mauntler, Tony Schmitz, W. Gregory Sawyer
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2010, 132(3): 031604.
https://doi.org/10.1115/1.4001786
Published Online: July 21, 2010
View Article titled, Comparison Between Elastic Foundation and Contact Force Models in Wear Analysis of Planar Multibody System
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Topics: Multibody systems, Waste-to-energy, Wear, Bushings, Clearances (Engineering)
Journal Articles

Material Property Identification and Sensitivity Analysis Using Micro-Indentation

Long Ge, Nam H. Kim, Gerald R. Bourne, W. Gregory Sawyer
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research Papers
J. Tribol. July 2009, 131(3): 031402.
https://doi.org/10.1115/1.3142902
Published Online: June 1, 2009
View Article titled, Material Property Identification and Sensitivity Analysis Using Micro-Indentation
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Topics: Materials properties, Sensitivity analysis, Geometry, Simulation, Optimization, Response surface methodology
Proceedings Papers

Design Sensitivity Analysis of Nonlinear Shell Structure With Frictionless Contact

Kyung K. Choi, Kiyoung Yi, Nam H. Kim, Mark E. Botkin
Proc. ASME. IDETC-CIE2003, Volume 2: 29th Design Automation Conference, Parts A and B, 879-889, September 2–6, 2003
Publisher: American Society of Mechanical Engineers
Paper No: DETC2003/DAC-48795
https://doi.org/10.1115/DETC2003/DAC-48795
View Paper titled, Design Sensitivity Analysis of Nonlinear Shell Structure With Frictionless Contact
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Topics: Design sensitivity analysis, Shells, Stress, Deformation, Design, Shapes, Elastoplasticity, Meshfree methods, Rotation