利用自行研制的含热传导、冲击动力学大、变形有限元程序 ,模拟了小尺寸梁在脉冲激光加热条件下的变形过程。在此基础上 ,利用商用程序模拟了冷却及残余应力的产生 ,研究了激光参数 (强度及分布 )等对于微弯曲的影响。数值模拟结果与文献中的实验观察相吻合 The deformation process of the small-size beam under pulsed laser heating was simulated by a self-developed finite element program including heat conduction, impact kinetics and deformation. On this basis, the cooling and residual stress generation were simulated by commercial program, and the influence of laser parameters (intensity and distribution) on the micro-bending was studied. The numerical simulation results are consistent with the experimental observations in the literature