All Stories

  1. Prioritizing Possible Force Models Error in Multiphase Flow Using Global Sensitivity Analysis

    Article • AIAA Journal, May 2021, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Postdoc Associate Chanyoung Park

  2. Weaponizing Favorite Test Functions for Testing Global Optimization Algorithms: An illustration with the Branin-Hoo Function

    Article • June 2020, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  3. Issues in Deciding Whether to Use Multifidelity Surrogates

    Article • AIAA Journal, May 2019, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Postdoc Associate Chanyoung Park

  4. Adaptive Sampling with Varying Sampling Cost for Design Space Exploration

    Article • AIAA Journal, March 2019, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Postdoc Associate Chanyoung Park

  5. General Surrogate Adaptive Sampling using Interquartile Range for Design Space Exploration

    Article • January 2019, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  6. Multifidelity Surrogate Based on Single Linear Regression

    Article • AIAA Journal, December 2018, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Postdoc Associate Chanyoung Park

  7. Sampling by Exploration and Replication for Estimating Experimental Strength of Composite Structures

    Article • AIAA Journal, October 2017, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  8. Sensitivity Analysis of Force Models for a Four-Way Coupled Eulerian-Lagrangian Dispersed Multiphase Flow

    Article • June 2017, American Institute of Aeronautics and Astronautics (AIAA)

    Postdoc Associate Chanyoung Park, Professor Raphael T Haftka

  9. Uncertainty Quantification of Experiments on a Small Number of Explosively-Driven Particles

    Article • January 2017, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Postdoc Associate Chanyoung Park

  10. Simple Alternative to Bayesian Multi-Fidelity Surrogate Framework

    Article • January 2017, American Institute of Aeronautics and Astronautics (AIAA)

    Postdoc Associate Chanyoung Park, Professor Raphael T Haftka

  11. Deciding Optimal Number of Fatigue Crack Growth Tests for Damage-Tolerant Design

    Article • Journal of Aircraft, May 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  12. Calculating B-Basis for Crack Growth Life

    Article • AIAA Journal, April 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  13. Simulating Future Test and Redesign Considering Epistemic Model Uncertainty

    Article • January 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  14. Validation, Uncertainty Quantification and Uncertainty Reduction for a Shock Tube Simulation

    Article • January 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Postdoc Associate Chanyoung Park

  15. Anomaly Detection Using Groups of Simulations

    Article • January 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Postdoc Associate Chanyoung Park

  16. Function Extrapolation of Noisy Data using Converging Lines

    Article • January 2016, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Postdoc Associate Chanyoung Park

  17. Improving the Fabrication Process of Micro-Air-Vehicle Flapping Wings

    Article • AIAA Journal, October 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  18. Probabilistic Manufacturing Tolerance Optimization of Damage-Tolerant Aircraft Structures Using Measured Data

    Article • Journal of Aircraft, September 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Mr Christopher J Hurst

  19. Using Bootstrap to Assess Sampling Uncertainty in Fatigue Crack Growth Life

    Article • January 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  20. Effectiveness Indicators for Stopping Criteria based on Minimum Required Improvement

    Article • January 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  21. Multi-Objective Experimental Optimization with Multiple Simultaneous Sampling for Flapping Wings

    Article • January 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  22. Uncertainty Quantification of Composite Structures with Defects using Multilevel Monte Carlo Simulations

    Article • January 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  23. NASA Uncertainty Quantification Challenge: An Optimization-Based Methodology and Validation

    Article • Journal of Aerospace Computing Information and Communication, January 2015, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Taiki Matsumura

  24. Efficient Global Optimization with Adaptive Target Setting

    Article • AIAA Journal, July 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  25. Optimization when Cost of Optimization is Comparable to the Objective Function

    Article • June 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  26. Optimistic Bias in Surrogate Prediction near Surrogate Optima

    Article • June 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  27. Global Search for Diverse Competitive Designs

    Article • June 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  28. Special Section on Multidisciplinary Design Optimization

    Article • AIAA Journal, April 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Prof Karen E Willcox, Professor Raphael T Haftka

  29. Relationship between Fleet Characteristics and Welfare of Stakeholders of Commercial Air Transportation: Airlines, Manufacturers, and the Public

    Article • January 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  30. Performance of Different Alloys by Assessing Epistemic and Aleatory Uncertainty in the Crack Growth Rates

    Article • January 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Mr Christopher J Hurst

  31. Deciding How Conservative A Designer Should Be: Simulating Future Tests and Redesign

    Article • January 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Taiki Matsumura

  32. Thrust-Power Pareto Fronts based on Experiments for Small Flapping Wings

    Article • January 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka

  33. Framework for Quantification and Risk Analysis for Layered Uncertainty using Optimization: NASA UQ Challenge

    Article • January 2014, American Institute of Aeronautics and Astronautics (AIAA)

    Professor Raphael T Haftka, Taiki Matsumura