文献类型：期刊文献

英文题名：GF/epoxy laminates embedded with wire nets: A way to improve the low-velocity impact resistance and energy absorption ability

作者：Wan, Yun[1];Diao, Chengyan[1];Yang, Bin[2];Zhang, Lu[3];Chen, Shenshen[1]

机构：[1]East China Jiaotong Univ, Sch Civil Engineer & Architecture, Nanchang, Jiangxi, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]Shenyang Aerosp Univ, Fac Aerosp Engn, Shenyang, Liaoning, Peoples R China

年份：2018

卷号：202

起止页码：818

外文期刊名：COMPOSITE STRUCTURES

收录：;EI(收录号：20181605022423);WOS:【SCI-EXPANDED(收录号:WOS:000443821700087)】；

基金：This work was supported by National Natural Science Foundation of China (No. 11702097), Primary Research & Development Plan of Jiangxi Province of China (20071BBE50024), and Foundation of Shenyang Educational Committee (L201725).

语种：英文

外文关键词：Low-velocity impact; Hybrid composites; 3D FE simulation; Penetration threshold

摘要：The present paper aims to provide further understanding of the low-velocity impact behaviour of glass fabric cloth reinforced epoxy composite panels embedded with wire nets (WN-GF/epoxy). WN-GF/epoxy hybrid panels with six layer modes were manufactured by vacuum-assisted injection process. Low-velocity impact tests with various incident velocities were performed, and the perforation thresholds of the designed specimens were found out. Scanning electron microscope was carried out to study the microstructure of the composites after impact. Experimental results show that perforation threshold velocity of the specimens appears a bi-linear increasing tendency with increase of the embedded wire nets, and the increase ratio has an inflection point. Damage pattern observation results show that the enhanced energy abortion ability is mainly due to the increased delamination area of the specimens during the impact events. 3D finite element models were developed in ABAQUS/Explicit to analyze the damage behavior of WN-GF/epoxy composites, and a user subroutine was compiled. The contact load and change of kinetic energy absorption characteristics have been used to validate the finite element results. The penetration process and damage modes of WN-GF/epoxy interply hybrid composites under low-velocity impact are further discussed with the assistant of numerical results.