复合材料科学与工程Issue(8)：1-7,7.DOI:10.19936/j.cnki.2096-8000.20250828.001
不同温度下环氧树脂的高应变率冲击行为研究
High strain rate impact behaviour of epoxy resins at different temperatures
摘要
Abstract
In order to study the dynamic compressive mechanical properties of epoxy resin under high strain rate loading and different temperatures,the yield stress of epoxy resin with strain rate of 0.001 s-1 was obtained through quasi-static test,and then the dynamic compression test of epoxy resin was conducted by SHPB method.The stress-strain curves under uniaxial compression at temperatures of 25℃,50℃and 70℃and strain rate of 1 000 s-1,2 500 s-1,3 000 s-1 were obtained,and the dynamic constitutive relations including strain rate effect and tempera-ture effect of epoxy resin at high strain rate were obtained.The results show that the epoxy resin has strain rate effect,and the development trend of the stress-strain curves of the three high strain rates is the same.Finally,the relation-ship between yield stress,temperature and strain rate was fitted to describe the relationship between yield stress and temperature of epoxy resin at high strain rate.Based on this,the established constitutive model considering the influ-ence of strain rate and temperature can well describe the stress-strain relationship of epoxy resin at high strain rate,and the research results can provide references for the study of constitutive model of epoxy resin.关键词
环氧树脂/SHPB/冲击力学/高应变率/本构方程Key words
epoxy resin/SHPB/impact mechanics/high strain rate/constitutive equatio分类
通用工业技术引用本文复制引用
邹凯,刘峥,赵昌方,刘浩,刘琛,张克斌..不同温度下环氧树脂的高应变率冲击行为研究[J].复合材料科学与工程,2025,(8):1-7,7.基金项目
中国博士后科学基金(2024M751640) （2024M751640）
国家资助博士后研究人员计划(GZC20231315) （GZC20231315）
黑龙江省重点研发计划(2023ZX07D03) （2023ZX07D03）
