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Modeling of the shot peening of a nickel alloy with the consideration of both residual stresses and work hardening

Article dans une revue avec comité de lecture
Auteur
ccGOULMY, Jean-Patrick
211915 Mechanics surfaces and materials processing [MSMP]
BOYER, V.
1075287 Laboratoire des Systèmes Mécaniques et d'Ingénierie Simultanée [LASMIS]
RETRAINT, D.
1075287 Laboratoire des Systèmes Mécaniques et d'Ingénierie Simultanée [LASMIS]
KANOUTE, P.
1042183 DMAS, ONERA, Université Paris Saclay [Châtillon]
TOUALBI, L.
1042183 DMAS, ONERA, Université Paris Saclay [Châtillon]
ROUHAUD, E.
1075287 Laboratoire des Systèmes Mécaniques et d'Ingénierie Simultanée [LASMIS]

URI
http://hdl.handle.net/10985/23781
DOI
10.1016/j.ijsolstr.2023.112120
Date
2023-03
Journal
International Journal of Solids and Structures

Résumé

Shot peening of turbine disk engines is performed in the aerospace industry in order to enhance fatigue life. This surface enhancement method generates beneficial modifications like superficial compressive residual stresses that are known to delay crack initiation and propagation. In the same way, work hardening is also introduced at the surface of the part during shot peening and can have a significant influence on fatigue crack initiation. Taking this parameter into account in the fatigue design of parts, in addition to the residual stresses, is a real challenge to be the most predictive. One possibility for this is to be able to predict it during the modeling of the shot peening process. In the present work, various peening conditions are considered in order to be able to propose a model able to account for the influence of coverage and Almen intensity on residual stresses and work hardening. The studied material is Inconel 718, commonly used for aeronautical parts. The X-ray diffraction method is used to obtain the in-depth residual stress and work hardening profiles. A three-dimensional numerical model is proposed to predict these quantities. Efforts are made to consider all recent advances in three-dimensional simulation of the process, in terms of coverage assessment, shot and treated part modeling. The numerical results are compared to the experimentally measured residual stresses and work hardening.

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Taille:
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Format:
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Fin d'embargo:
2023-09-01
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  • Laboratoire Mechanics, Surfaces and Materials Processing (MSMP)

Documents liés

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  • A calibration procedure for the assessment of work hardening part I: Effects of the microstructure and load type 
    Article dans une revue avec comité de lecture
    ccGOULMY, Jean-Patrick; ROUHAUD, E.; KANOUTE, P.; TOUALBI, L.; KRUCH, S.; BOYER, V.; BADREDDINE, J.; RETRAINT, D. (Elsevier BV, 2021)
    This paper presents a methodology to define and quantify the level of work hardening locally in a material. The methodology is proposed after a thorough experimental study based on three complementary experimental techniques ...
  • A calibration procedure for the assessment of work hardening Part II: Application to shot peened IN718 parts 
    Article dans une revue avec comité de lecture
    ccGOULMY, Jean-Patrick; KANOUTE, P.; ROUHAUD, E.; TOUALBI, L.; KRUCH, S.; BOYER, V.; BADREDDINE, J.; RETRAINT, D. (Elsevier BV, 2021)
    The objective of this paper is to discuss the application of the calibration methodology exposed in the previous part to shot-peened Inconel 718 specimens. Shot peening is commonly used to increase the fatigue life of ...
  • A model for the influence of work hardening and microstructure on the evolution of residual stresses under thermal loading – Application to Inconel 718 
    Article dans une revue avec comité de lecture
    ccGOULMY, Jean-Patrick; TOUALBI, L.; BOYER, V.; KANOUTE, P.; RETRAINT, D.; ROUHAUD, E. (Elsevier BV, 2024-09)
    This study proposes a model for the influence of work hardening and microstructure on the thermal relaxation of residual stresses. To construct such a model, an experimental campaign is first conducted on shot peened samples ...
  • A probabilistic model to consider scale and gradient effects in the prediction of the fatigue life of Inconel 718 for turbine disk application 
    Article dans une revue avec comité de lecture
    ccGOULMY, Jean-Patrick; ccKAMINSKI, Myriam; LEROY, F.H.; ccKANOUTE, Pascale (Elsevier, 2025-05)
    The aim of this paper is to implement and compare different fatigue post-processing approaches for fatigue life assessment of complex parts. Inconel 718 is taken as an example, as it can exhibit several factors influencing ...
  • Mechanical behavior of polycrystals: Coupled in situ DIC-EBSD analysis of pure copper under tensile test 
    Article dans une revue avec comité de lecture
    ccGOULMY, Jean-Patrick; ccDEPRIESTER, Dorian; GUITTONNEAU, F.; ccJÉGOU, Sébastien; BARRALLIER, Laurent (Elsevier BV, 2022-12)
    Understanding the mechanisms at the microstructure scale is of great importance for modeling the behavior of materials at different scales. To this end, digital image correlation (DIC) is an effective measurement method ...

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