Abstract
Shot peening is a surface treatment that consists of bombarding a ductile surface with numerous small and hard particles. Each impact creates localized plastic strains that permanently stretch the surface. Since the underlying material constrains this stretching, compressive residual stresses are generated near the surface. This process is commonly used in the automotive and aerospace industries to improve fatigue life. Finite element analyses can be used to predict residual stress profiles and surface roughness created by shot peening. This study investigates further the parameters and capabilities of a random impact model by evaluating the representative volume element and the calculated stress distribution. Using an isotropic-kinematic hardening constitutive law to describe the behaviour of AA2024-T351 aluminium alloy, promising results were achieved in terms of residual stresses.
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© 2012 TMS (The Minerals, Metals & Materials Society)
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Gariépy, A., Perron, C., Bocher, P., Lévesque, M. (2012). Finite Element Simulation of Shot Peening: Prediction of Residual Stresses and Surface Roughness. In: Weiland, H., Rollett, A.D., Cassada, W.A. (eds) ICAA13 Pittsburgh. Springer, Cham. https://doi.org/10.1007/978-3-319-48761-8_39
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DOI: https://doi.org/10.1007/978-3-319-48761-8_39
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48225-5
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