During a laser peening event,pressures well above the dynamic yield strength of the material are imparted to the target in a fraction of nanoseconds.

• 当激光诱导冲击波的峰值超过材料的动态屈服极限时,板料冲击区的表层发生微观塑性变形,导致了板料厚度方向上不均匀应力分布,使板料发生宏观变形。