摘要：Prof. Hsien-Yang Yeh obtained B.S. degree from the Department of civil engineering, Cheng Kung University, M.S. degree in Applied mathematics from Brown University, MS. degree in Engineering Mechanics from Columbia University and Ph.D. degree in composite materials from University of Southern California. Dr. Yeh has been working in the area of mechanics of composite materials, fracture mechanics as well as stress analysis of engineering structures. And Dr.Yeh is a professor in the Mechanical Engineering Department,California State University, Long Beach.