采用Perzyna过应力本构框架，引入塑性损伤在饱和强化率相关介质中的动态演化规律，建立了考虑损伤的弹-粘塑性本构方程，修正了Eftis等人将Perzyna方程推广时采用不一致的基体强化模式推演损伤演化方程和本构关系这一矛盾．详细计算了黄铜的初始屈服强度及率相关屈服面．给出了动态单轴拉伸数值结果并与实验进行了比较，结果符合很好． The Perzyna over stress constitutive framework is used to introduce the dynamic evolution law of plastic damage in the medium related to saturation enhancement rate. The elasto-visco-plastic constitutive equation considering the damage is established. When Eftis et al. Generalized the Perzyna equation, the inconsistent matrix Reinforcement mode derives the contradiction between damage evolution equation and constitutive relation. The initial yield strength and rate-dependent yield surface of brass were calculated in detail. The numerical results of dynamic uniaxial tension are given and compared with the experimental results. The results are in good agreement.