Compressive Behaviour and Failure Mechanisms of GFRP Composite at High Strain Rates

作     者：Dejun Yin Jian Zheng Chao Xiong Junhui Yin Huiyong Deng Xiaobo Su 

作者机构：Department of Artillery EngineeringArmy Engineering University Shijiazhuang Division of PLAA Infantry College 

出 版 物：《Journal of Beijing Institute of Technology》 (北京理工大学学报（英文版）)

年 卷 期：2019年第28卷第1期

页      面：184-190页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：Supported by the Ministerial Level Key Task Project of China(MS201507A0132) 

主　　题：glass fiber reinforced polymer(GFRP)composite split Hopkinson pressure bar(SHPB) compressive behavior failure mechanism high-speed camera 

摘      要：Experimental investigations into the compressive behavior of glass fiber reinforced polymer(GFRP)composite at high strain rates were carried out using a split Hopkinson pressure bar(SHPB)*** GFRP laminates were made from E-glass fibers and epoxy resins by vacuum assisted compression molding *** results of the compressive tests indicated that the mechanical behavior of the GFRP composite depends highly on the strain *** compressive peak stress,toughness and Young s modulus of the GFRP composite increased with the increase of strain rate,while the strain level at the initial stages of damage was shortened with the increase of strain *** addition,the dynamic deformation behavior and failure process of the specimens were observed directly by using a high-speed *** the experiments,the fracture morphologies and damage modes were examined by scanning electron microscopy(SEM)to explore the possible failure mechanisms of the *** results showed that multiple failure mechanisms appeared,such as matrix crack,fiber-matrix debonding,fiber failure and shear fracture.