Simulation-based optimization of laser shock peening process for improved bending fatigue life of Ti–6Al–2Sn–4Zr–2Mo alloy

Modeling of residual stress field induced in Ti–6Al–4V alloy plate by two sided laser shock processing

“…Up to now, there have been lots of attempts to reveal the characteristics of the RS distribution induced by LSP through experiment and finite element method (FEM) [6][7][8][9][10][11][12][13][14][15][16][17]. Lu et al [10] experimentally studied the effect of repeated LSP treatment on CRS and material microstructure of LY2 aluminum alloy.…”

Effect of elastic prestress on the laser peen forming of aluminum alloy 2024-T351: Experiments and eigenstrain-based modeling

“…Hu et al (2010a) adopted this method to simulate the LPF process with several laser shocks to bend small-scale parts but with artificially critical damping to reduce computation cost. Bhamare et al (2013) analyzed the residual stress under different path strategies. However, due to a fine mesh size (≤100 m) and very small time steps (≤1 ns) to capture the extremely transient response, modeling in such a way for a large-scale process requires tremendous amounts of computational power exceeding available computational capabilities.…”

Fatigue Life Behavior of Laser Shock Peened Duplex Stainless Steel with Different Samples Geometry

“…Rubiogonzalez et al founded that as the density of pulses increases, the fatigue crack growth rate decreases in compact tension samples of Al-6061-T6 [2] and 2205 DSS [3]. e fatigue life behavior as function of laser swept direction was optimized for bending fatigue in Ti-6Al-2Sn-4Zr-2Mo [4] and tensile-tensile fatigue test to 2024-T351 [5], 2205 DSS [6], and 316L [7] alloys. Different fatigue behaviors were observed varying the swept direction for each case, demonstrating a high influence of this LSP parameter on fatigue life behaviors of these alloys.…”