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Residual stress field prediction and fatigue post processing for shot peened mechanical parts with complex geometry

Communication avec acte
Author
GELINEAU, Maxime
549864 Institut de recherche technologique Matériaux Métallurgie et Procédés [IRT M2P]
ROUHAUD, Emmanuelle
93484 Université de Technologie de Troyes [UTT]
PUYDT, Quentin
549864 Institut de recherche technologique Matériaux Métallurgie et Procédés [IRT M2P]
BADREDDINE, Jawad
300457 SAFRAN Group
MAUDUIT, Clément
549864 Institut de recherche technologique Matériaux Métallurgie et Procédés [IRT M2P]
WEBER, Bastien
36484 ArcelorMittal Maizières Research SA
BARRALLIER, Laurent
211915 Mechanics surfaces and materials processing [MSMP]
ccKUBLER, Regis

URI
http://hdl.handle.net/10985/14737
Date
2017

Abstract

Even when properly controlled, shot peening treatment may induce a complex residual stresses (RS) field depending on the geometry of the treated part. Hence, among the variables which affect the fatigue behaviour of shot peened components, the geometry could play a major role. The more widespread method for predicting RS after shot peening consists in modelling the process by simulating the impacts between the shot and the treated part. When the geometry become complex, this method is not consistent with industrial constraints in terms of computing time. Thus the need is to develop a methodology in order to generate the RS field into a shot peened mechanical part with complex non flat geometries, and consequently predict the lifetime in a high cycle fatigue (HCF) regime.

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