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中文摘要：
实验研究了用不同的激光能量，对LD-31锻铝合金靶板进行激光冲击而引起的动态损伤，并用ABAQUS软件进行了有限元仿真分析。实验和仿真结果均表明：材料从无破坏到破坏，是空穴、微裂纹成核、长大、聚合的结果。材料的损伤及长大是时间和外载的函数，因此，不能用单一的应力或应变率表征动态损伤过程，而必须考虑损伤累积过程。
英文摘要：
LD-31 aluminum alloy sheet was shocked by pulsed laser. Due to the complicate mechanism of interaction between materials and intense laser, some mechanisms of damage were experimentally and simulatively studied. Experimental and simulative results indicate that the dynamic damage of material results from the nucleation, the upgrowth, and the polymerization of the cavity and micro-crack. So, the dynamic damage of the material cannot only be characterized with the simplex stress or strain rate, whereas the damage cumulation must be taked into account.
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