应用一维理想弹塑性流体力学模型 ,通过有限差分方法 ,研究了XeCl准分子脉冲强激光辐照固体靶材时 ,表面烧蚀压力在靶材中产生的激波的形成、持续和衰减过程 ;并应用累积损伤判据和动态断裂准则 ,分别计算了金属铝和碳酚醛靶材的层裂损伤。对有关实验数据给出合理的理论解释 A one - dimensional ideal elastic - plastic fluid mechanics model was used to study the formation, continuation and decay process of shock wave produced by the surface ablation pressure on the target when the XeCl excimer pulsed laser was irradiated on the solid target by the finite difference method. And the cumulative damage criterion and dynamic fracture criterion are applied to calculate the dehiscence damage of the aluminum and carbon phenolic targets respectively. Give a reasonable theoretical explanation of the experimental data