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A numerical investigation of the high cycle fatigue sensitivity to microstructure and defect

Liang, Xiaoyu and Robert, Camille and Hor, Anis and Morel, Franck A numerical investigation of the high cycle fatigue sensitivity to microstructure and defect. (2020) International Journal of Fatigue, 136. 105541-105556. ISSN 0142-1123

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Official URL: https://doi.org/10.1016/j.ijfatigue.2020.105541

Abstract

This study aims at investigating the effect of defect on the high cycle fatigue behavior of polycrystalline aggregates. An explicit virtual microstructure finite element model is created to conduct fatigue simulations. Different stress-based criteria frequently applied in fatigue assessment are tested with a combination of the non-local methods. Two realizations of the non-local method are used and compared. Simulation results are compared to experimental results of 316L. From the parametric simulations, better qualitative understandings on the choice of non-local method as well as its parameters are obtained. The effect of Kitagawa-Takahashi can be reproduced and explained by this proposed framework of microstructure modeling-simulation.

Item Type:Article
HAL Id:hal-03033391
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > HESAM université (FRANCE)
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Deposited On:01 Dec 2020 11:38

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