关键词: 高功率激光, 烧蚀, 热力效应, 计算机模拟, 传热, 热传导, 固体力学

Abstract: High power laser irradiation damage was mainly caused by three aspects as thermal, mechanical and radiation damages of the material, and direct characterization parameters for laser ablation was the thermal and mechanical effects of the material caused by laser irradiation. According to performance indicators and damage models of an airborne laser (ABL) weapon system, design framework and algorithmic process for ABL simulation system were build and the appropriate mathematical and physical models were established. Discrete method was used for solving the heat conduction equation, and the key parameters to characterize the ability of laser damage were obtained. Probability of damage occurrence for materials was simulated under different operating conditions, and the factors to affect damage probability were also analyzed.

Key words: high-power laser, ablation, thermal and mechanical effects, computer simulation, heat transfer, thermal conductivity, solid mechanics