Junfeng GU is an Associate Professor of Engineering Mechanics at Dalian University of Technology, China. He received a Ph.D. degree in mechanics from the Dalian University of Technology in 2009. Dr. Gu has devoted himself to the study of theory, simulation, and optimization during advanced molding and service of polymer and composite materials. His main research directions include structural optimization, polymer molding process optimization, polymer service behavior, medical polymer interface behavior, and intelligent optimization algorithm. He has published more than 50 academic journal papers and taught the structural analysis course for 8 years.