文献类型：期刊文献

英文题名：Experimental investigation of GF/epoxy laminates with different SMAs positions subjected to low-velocity impact

作者：Sun, Min[1];Wang, Zhenqing[1];Yang, Bin[2];Sun, Xiaokun[1]

机构：[1]Harbin Engn Univ, Coll Aerosp & Civil Engn, Harbin 150001, Peoples R China;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2017

卷号：171

起止页码：170

外文期刊名：COMPOSITE STRUCTURES

收录：;EI(收录号：20171203479300);WOS:【SCI-EXPANDED(收录号:WOS:000400879600016)】；

基金：This work is financially supported by the National Natural Science Foundation of China (No. 11472086). The authors are also particularly grateful the support of Harbin Engineering University of China and the help of laboratory members during the research.

语种：英文

外文关键词：Unidirectional cross-ply GE/epoxy laminates; SMAs positions; Low-velocity impact; Energy

摘要：In this paper, the impact response of unidirectional cross-ply GF/epoxy laminates with different shape memory alloys (SMAs) positions was investigated. According to vacuum assisted resin injection (VARI) process, we manufactured the laminates without SMAs, the laminates with one layer of SMAs were inserted in 1/8 thickness, in 1/2 thickness, in 14/16 thickness, and in 15/16 thickness of specimen, respectively, the laminates with two layers of SMAs were inserted in the 15/16 and 14/16 thickness, in 15/16 and 1/2 thickness, in 15/16 and 1/8 thickness, in 14/16 and 1/2 thickness, in 14/16 and 1/8 thickness, and in 1/2 and 1/8 thickness of specimen, respectively. The low-velocity impact experiment was performed by Dynatup 9250HV Drop Weight Impact Testing Machine under the impact energy of 28 J to analyze the impact response, and the impact parameters such as contact force (F), displacement (D) and energy (E) of the laminates were obtained. To further observe and analyze the impact damage morphology, we also adopted visual inspection and scanning electron microscope (SEM) technology. The experimental results showed that impact performance of laminates improved by embedding SMAs. By contrast, the impact performance of the laminates with two layers of SMAs was optimum. (C) 2017 Elsevier Ltd. All rights reserved.