V-5Cr-5Ti合金的动态压缩力学性能及本构关系  

Studies on the Dynamic Compressive Behavior and Constitutive Equation of V-5Cr-5Ti Alloy

作　　者：陈杰[1] 梅军[2] 谢若泽[2] 胡文军[2] 何鹏[2] 王彤伟[2] 谢若泽 

机构地区：[1]西南科技大学土木工程与建筑学院,四川绵阳621010 [2]中国工程物理研究院总体工程研究所,四川绵阳621900

出　　处：《西南科技大学学报》2010年第3期6-10,共5页Journal of Southwest University of Science and Technology

基　　金：中国工程物理研究院科学技术基金资助项目(2007A04001)

摘　　要：利用Hopkinson压杆技术对V-5Cr-5Ti合金动态压缩力学性能进行了实验测试,获得了不同应变率下V-5Cr-5Ti合金的压缩应力—应变曲线,结果显示V-5Cr-5Ti合金具有较强的应变率敏感性。根据实验结果,确定了描述V-5Cr-5Ti合金常温动态性能本构参数,并将实验结果与计算结果进行了比较,两者吻合较好。Split-Hopkinson-Pressure Bar（SHPB） technique had been used to investigate the basic dynamic compression mechanical properties of V-5Cr-5Ti alloy.The stress-strain curves for different strain rates have been obtained,and the curves show that V-5Cr-5Ti alloy exhibits definite strain-rate sensitivity.Based on the results,constitutive parameters that describe the dynamic properties of V-5Cr-5Ti alloy at room temperature have been determined.The experimental results and the calculation results match well.

关 键 词：V-5Cr-5Ti合金 应变率效应 动态压缩性能 本构关系 

分 类 号：TG146.413[一般工业技术—材料科学与工程]