Numerical simulation on temperature and stress of pulsed laser repairing fused silica defects

Temperature and residual stress distribution of pulsed laser mitigation of fused silica damage is simulated by finite element method. The maximum stress does not appear in the irradiated center but in the periphery because the material at the center has melted. The effects of frequency, duty cycle and beam size on the shape of ablation pit and molten pool… CONTINUE READING