The Impact Failure and Energy Dissipation Mechanism of Polyethylene Laminates

作     者：SHU Zaiqin ZHANG Jinyong 舒在勤;ZHANG Fan;WANG Weimin;FU Zhengyi;CHEN Wenjie;张金咏

作者机构：State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingInstitute of Material Science and EngineeringWuhan University of TechnologyWuhan430070China System Design Institute of Hubei Aerospace Technology AcademyWuhan430040China 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2019年第34卷第3期

页      面：723-727页

核心收录：

学科分类：08[工学] 

基　　金：Funded by National Natural Science Foundation of China(No.51502220) 

主　　题：polyethylene ballistic impact energy dissipation strain rate 

摘      要：The damage mechanism and energy dissipation of the Polyethylene (PE) laminates in impacting was investigated. It was found that the dissipated energy of the impacting sphere bullet by the 1-mmthick PE plate firstly increased with the impacting velocity increasing from 50 to about 300 m/s, and then decreased with the impacting velocity increasing up to 600 m/s. According to the measured deformation and damage degree, a numerical simulation of the dissipated energy was made and obvious offset was found with the experimental results. The quasi-static properties of the PE fibers, decreasing with increase in tensile velocity, may be the main reason for the offset.