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.