钨合金的高压本构研究

通过静高压实验、动高压实验及理论计算相结合的方法，确定了钨合金的一种高压本构方程 （Steinberg模型方程）中的各参数.用数值模拟计算方法，采用几种不同的本构模型进行了 计算，并与实测结果进行了比较.结果显示，确定的高压本构方程计算值与实测值符合最好. 关键词： 高压本构方程 Steinberg 模型 数值模拟计算 粒子速度波形

Constitutive study for tungsten alloy under high pressure

This article describes a method which combines the static pressure experiment,dynamic experiment and theoretical calculation to obtain the parameters in the SCG constitutive model for tungsten alloy under high pressures. By using the constitutive model we obtained in numerical simulation that the calculated profiles of particle velocity are in accordance with the experimental results. We also conducted some other simulations by using different constitutive models and compared them with experimental results. The results show that the constitutive model we obtained was the best.