论文部分内容阅读
本文利用—维理想弹塑性流体力学模型,通过数值方法,研究了高功率脉冲强激光辐照固体靶材时,表面烧蚀压在固体靶材中产生的激波的形成、稳定和衰减过程。并分别利用累计损伤判据和动态断裂准则,计算了铝靶中产生的层裂损伤。所得结果与国外有关数值模拟及实测结果较为一致。
In this paper, the formation, stabilization and attenuation of shock waves generated by surface ablation pressure on solid targets are studied numerically by using the - dimensional ideal elasto-plastic fluid mechanics model. The cumulative damage criterion and dynamic fracture criterion were used respectively to calculate the delamination damage in aluminum target. The results obtained with foreign numerical simulation and the measured results are more consistent.