为有效测量试件中的应力、应变及应变率,Hopkinson拉伸试验(TSHB)必须作优化分析,所进行的数值模拟涉及试件与杆件等连接对于实验结果的影响.为减小上升前沿、惯性效应且使试件处于一维应力及均匀应力与应变状态,优化的试件具有一定的长度与形状要求.对于高导无氧铜,由准静态试验及不同应变率与温度的优化TSHB试验得到一系列应力-应变曲线,并被拟合确定J-C及Z-A型动态本构模型.利用所确定的动态本构模型数值计算的反射与透射的应变在一定程度上与实验结果一致.文中强调指出,必须采用全过程数值模拟,对TSHB试验进行优化设计,并且对所确定的试件动态本构模型进行代入校核,再现实验结果. In order to effectively measure the stress, strain and strain rate in the specimen, the Hopkinson Tensile Test (TSHB) must be optimized and the numerical simulation involved involves the influence of the connection between the specimen and the rod on the experimental results. In order to reduce the ascending front , Inertial effect and the specimen in one-dimensional stress and uniform stress and strain state, the optimized specimen has a certain length and shape requirements.For high conductivity oxygen-free copper, quasi-static test and different strain rate and temperature optimization TSHB A series of stress-strain curves were obtained and fitted to determine the dynamic constitutive models JC and ZA. The calculated reflection and transmission strain of the constitutive model were consistent with the experimental results to a certain extent. It is pointed out that the whole process numerical simulation must be used to optimize the TSHB test. The dynamic constitutive model of the test specimen is verified and the experimental results are reproduced.