Benefits from laser Peening have been demonstrated several times in fields like fatigue, wear
or stress corrosion cracking. However, in spite of recent work on the calculation of residual
stresses, very few authors have considered a finite element method (FEM) approach to predict
laser-induced mechanical effect. This comes mainly from the high strain rates involved during LP (106 s−1), that necessitate the precise determination of dynamic properties, and also from the
possible combination of thermal and mechanical loadings in the case of LP without protective
coatings. In this paper, we aim at presenting a global approach of the problem, starting from
the determination of loading conditions and dynamic yield strengths, to finish with FEM
calculation of residual stress fields induced on a 12% Cr martensitic stainless steel and a
7075 aluminium alloy.