爆炸与冲击2011，Vol.30Issue(2)：215-219,5.
利用SHPB测定高应变率下冰的动态力学行为
Dynamic mechanical behaviors of ice at high strain rates
摘要
Abstract
To explore the dynamic mechanical characteristics of ice, uniaxial compression tests were carried out in the strain rate range from 500 to 2 000 s-1 by using the split Hopkinson pressure bar (SHPB) technique at -25 and -10 ℃ , respectively. Molds were designed to manufacture ice samples, and a cooling chamber was developed to meet the low-temperature condition. Pulse shapers were used to achieve constant strain rate loading. Experimental results show that the dynamic stress-strain relation of ice is nonlinear, the peak stress and failure strain increase with the increase of strain rates, and the compressive strength of ice decreases with the increase of the test temperature.关键词
爆炸力学/动态力学行为/SHPB/冰Key words
solid mechanics/dynamic mechanical behavior/SHPB/ice分类
数理科学引用本文复制引用
汪洋,李玉龙,刘传雄..利用SHPB测定高应变率下冰的动态力学行为[J].爆炸与冲击,2011,30(2):215-219,5.基金项目
国防基础预研项目(A2720060277) （A2720060277）
高等学校学科创新引智计划项目(B07050) （B07050）
