Analysis of Residual Stress Relaxation Under Mechanical Cyclic Loading of Shot-Peened TRIP780 Steel
Communication avec acte
Auteur
MAUDUIT, C.PUYDT, QuentinMONIN, MartineWEBER, Bastien 
BERVEILLER, Sophie BARRALLIER, Laurent KUBLER, RegisRésumé
Shot-peening is a popular mechanical surface treatment used in automotive and aeronautical industries to enhance life duration of mechanical parts by introducing compressive residual stresses. TRIP 780 fatigue type specimens are shot-peened and loaded under cyclic bending. The martensite phase transformation and the evolution of residual stresses in the different phases are determined by XRD at different number of cycles. A FEM model is also proposed to better understand the evolution of residual stresses in the first cycles.
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Analysis of Residual Stress Relaxation Under Mechanical Cyclic Loading of Shot-Peened TRIP780 Steel Communication avec acte; ; ; ;BERVEILLER, Sophie; BARRALLIER, Laurent; KUBLER, Regis (Materials Research Forum, 2016)
Shot-peening is a common mechanical surface treatment used in automotive and aeronautical industries to enhance life duration of mechanical parts by introducing compressive residual ...
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Communication avec acte; ; ; ;BERVEILLER, Sophie; BARRALLIER, Laurent; KUBLER, Regis (ShotPeener ICSP13, 2017)
TRIP aided steels are used in the automotive industry due to their high strength, ductility and toughness properties. Typical parts made of TRIP steels (as engine sub-frame for instance) are submitted to cyclic loading ...
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Communication avec acte; ; ; ; ; ;BARRALLIER, Laurent; KUBLER, Regis (ShotPeener ICSP13, 2017)
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 ...
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Communication avec acte; ;BERVEILLER, Sophie; BARRALLIER, Laurent; KUBLER, Regis (MATEC Web of Conferences, 2015)
Le grenaillage de précontrainte a pour but d’augmenter la durée de vie des matériaux traités en introduisant des contraintes résiduelles de compression. Cette étude porte sur la modélisation de la tenue en fatigue d’aciers ...
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Conférence invitée; ; ; ; ; ;BERVEILLER, Sophie; KUBLER, Regis (2017)
The microstructure and mechanical fields were studied on a cold-rolled TRIP 780 steel after conventional shot peening, and with or without pre-strain; for the first time, results were compared to numerical simulations at ...