宇航材料工艺2023，Vol.53Issue(6)：17-25,9.DOI:10.12044/j.issn.1007-2330.2023.06.003
斜纹机织热塑性复合材料低速冲击损伤及多尺度数值模拟研究
Low-Velocity Impact Damage and Multi-Scale Numerical Simulation of Twill Woven Thermoplastic Composites
摘要
Abstract
Woven composites inevitably suffer from internal damage caused by low-velocity impact(LVI)during service,resulting in degradation of material properties.In this paper,the damage behavior of twill woven thermoplastic composites(TWTC)at LVI was investigated by a combination of test and simulation methods.A micro,meso and macro serial multi-scale model was constructed to predict the damage behavior of TWTC at LVI,and tests were conducted under 5 and 10J impact energy to verify the correctness of the multi-scale model.The results showed that the micro,meso and macro serial multi-scale model could accurately predict the impact damage behavior of the TWTC.Furthermore,damage occurred on both the front and back of the material under the large impact energy,and the damage was mainly caused by fiber fracture.Besides,the force response curves predicted by the numerical simulation of LVI were in good agreement with the test results,and the error of the damage area of the numerical simulation was within 10％.关键词
多尺度模型/低速冲击/损伤Key words
Multi-scale model/Low-velocity impact/Damage分类
通用工业技术引用本文复制引用
章韫杰,高飒飒,王泽雨..斜纹机织热塑性复合材料低速冲击损伤及多尺度数值模拟研究[J].宇航材料工艺,2023,53(6):17-25,9.基金项目
陕西省科技厅自然科学基金(2020JQ-701) （2020JQ-701）
