K. K. Choi is a Carver Professor of Mechanical Engineering at The University of Iowa. He teaches in the Mechanical and Industrial Engineering and the Applied Mathematical and Computational Sciences departments, and is a researcher in the Center for Computer-Aided Design. He has authored numerous publications and has twice won the ASME Best Paper Award. N. H. Kim is an Assistant Professor in the Department of Mechanical and Aerospace Engineering at the University of Florida. His research area is in structural design optimization, design sensitivity analysis, nonlinear structural mechanics, stru...