爆炸与冲击2017，Vol.37Issue(3)：405-414,10.DOI:10.11883/1001-1455(2017)03-0405-10
高温后钢管活性粉末混凝土的动态力学性能
Mechanical properties of reactive powder concrete-filled steel tube after exposure to high temperature under impact loading
摘要
Abstract
Experiments on reactive powder concrete-filled steel tube (RPC-FST) specimens after exposure to high temperature were performed by using a split Hopkinson pressure bar (SHPB) apparatus,and the influences of strain rate effects and temperature effects on the dynamic behaviors of RPC-FST were investigated.Test results show that the RPC-FST specimens after exposure to high temperature have excellent impact-resistance,ductility and integrity.The strain rate effects of the RPC-FST specimens are weaker than those of the RPC specimens under impact loading.The peak stress of the RPCFST specimens increases as the temperature increases,and the deformation capability and impact-resistance increase.The dynamic increase factor (DIF) increases as the temperature increases.It means that the strain rate effects of RPC-FST become more obvious after exposure to high temperature.关键词
钢管活性粉末混凝土/霍普金森杆/动态力学性能/破坏形态Key words
reactive powder concrete-filled steel tube (RPC-FST)/Hopkinson pressure bar/dynamic behavior/failure mode分类
数理科学引用本文复制引用
姜猛,郭志昆,陈万祥,邹慧辉,梁文光..高温后钢管活性粉末混凝土的动态力学性能[J].爆炸与冲击,2017,37(3):405-414,10.基金项目
国家自然科学基金项目(51378498,51578541) （51378498,51578541）
江苏省自然科学基金项目(BK20141066) （BK20141066）
