Dr. Cheng Yu is a professor and program coordinator in the Department of Mechanical Engineering at the University of North Texas, Denton, Texas, USA. He received his BS in Civil Engineering from the Tsinghua University. Both his MS and PhD were earned from the Johns Hopkins University. Dr. Yu’s research interests include thin-walled structures, structural stability, cold-formed steel, and earthquake engineering. Dr. Yu is an active committee member of the American Iron and Steel Institute which developed the North American Cold-Formed Steel Specifications and Standards. Dr Yu’s research has been funded by federal agencies, professional associations, and various industrial sponsors. Dr. Yu is a registered professional engineer in Texas and a Structural Engineering Institute fellow of the American Society of Civil Engineers.