中文摘要：

利用纵向锰铜应力计，对无氧铜（OFHC）材料进行了层裂实验，得到了典型的层裂信号；同时测量试件中的纵向应力和横向应力，直接确定了其流动应力。对实验结果与理论计算结果进行了比较，讨论了高压、高应变率下的强度模型以及横向应力计测试问题。

英文摘要：

The typical spall signals are obtained in planar shock wave experiments of oxygen-free high- conductivity copper（OFHC） using manganin gauges. The yield stresses of OFHC under planar shock loading are also obtained from longitudinal and transverse stresses recorded by manganin gauges. The experimental data are compared with numerical simulations. The influence of strength models for OFHC at high strain rate and high pressure on the simulated results are revealed. The determination of transverse stresses by using manganin gauges are also discussed.