利用纵向锰铜应力计,对于无氧铜(OFHC)进行了层裂实验,得到了典型的层裂信号;同时测量了试件中的纵向应力和横向应力,以直接确定材料的流动应力.采用构建的2种本构模型对无氧铜平面冲击波试验进行了数值模拟,比较并分析了相关的实验与理论计算结果.
The typical spall signals are obtained for 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 numerical simulations of the planar shock tests for OFHC (copper) are performed using the two constructed models and compared with the experimental results.