In this paper, a method was proposed for establishing the constitutive relationship based on microstrutural evolution. 提出了一种根据显微组织演化建立材料本构关系的方法。
It concluded that the change of constitutive behavior was determined by the level of strain-rate and effected by the geometric shape of workpieces. 指出应变速率界限决定高速率成形中材料本构关系的变化,工件几何外形对材料本构关系有较大地影响。