摘要
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。
By means of 1-D elastic-plastic hydrodynamic model and finite differential method, it is studied that formation, sustain, and decay of shock wave were induced by powerful pulsed excimer laser in target materials. By using the criterion of accumulate damage and dynamic fracture, the spall thicknesses are given in aluminum and C/Ph, respectively. These calculation results are in agreement with the experimental measurements reported, and reasonably explained experimental phenomena.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2002年第3期197-200,共4页
Chinese Journal of Lasers
关键词
准分子激光
激波传播过程
靶材
层裂损伤
Excimer lasers
Finite difference method
Fracture
Shock waves
Wave propagation
