[14p-2F-1~14] 3.7 Laser processing

[14p-2F-4] Estimation of Plastic Stress by Integrated Laser Peening Simulation

〇Hiroyuki Furukawa¹, Manabu Heya², Hitoshi Nakano³ (1.Inst. Laser Technol., 2.Faculty Eng. Osaka Sangyo Univ., 3.Faculty Science Eng. Kinki Univ.)

Keywords:laser peening,plastic stress,integrated simulation

We developed an Integrated Simulation code for Laser Ablation Peening (ISLAP) to estimate the stress and strain formations in solid metals.We evaluated the formation of plastic stress and strain in solid metals by solving hydrodynamics equations, the strain-displacement relation, and the stress-strain relation for the case the laser peak intensity 10 GW / cm², the laser pulse duration 10 ns, the temporal pulse shape rectangle, the material type Al, and the type of confinement material water. Using ISLAP, we can estimate the plastic stress and the strain in solid metals.