金属材料动态性能的平面冲击波测量

Dynamic Mechanical Behaviour of Materials Under Plate Impact Loading

摘要:

介绍了金属材料在高速高压状态下的一些物理特性，如在强冲击载荷下的本构关系、控制方程，加载和卸载的波动特征，动态屈服效应及动态破坏特征等以及轻气炮试验装置和测量技术的应用。文章对金属材料的动态形变方式也进行了讨论。

Abstract:

his paper presents some physicalproperties of metal materials in high strain - rates and high pressure,such as the constitutive equation and control equations at the high impact loading,the stress wave behaviour during loading and unloading, the dynamic yield and dynamic failure.The structure of the gas gun and some methods for the plate stroke wave tests are also presented in this paper.And the dynamic deformation mechanism of metal materials is discussed.