A numerical investigation of the high cycle fatigue sensitivity to microstructure and defect
Article dans une revue avec comité de lecture
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.
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Numerical investigation of the surface and microstructure effects on the high cycle fatigue performance of additive manufactured stainless steel 316L Article dans une revue avec comité de lectureLIANG, Xiaoyu; ROBERT, Camille; HOR, Anis; MOREL, Franck (Elsevier BV, 2021-04-09)This paper aims to study the individual and competitive effects of surface defects and microstructural components in an AM 316L by numerical methods. Based on the microstructure sensitive modeling framework, numerical ...
Correlation between microstructure and cyclic behavior of 316L stainless steel obtained by Laser Powder Bed Fusion Article dans une revue avec comité de lectureLIANG, Xiaoyu; HOR, Anis; ROBERT, Camille; SALEM, Mehdi; MOREL, Franck (Wiley, 2022-02-23)In this work, stainless steel 316L obtained by Laser Powder Bed Fusion (L-PBF) has been produced and characterized. The experimental campaign focuses on the samples in the as-built state under cyclic tension-compression ...
High cycle fatigue behavior of 316L steel fabricated by laser powder bed fusion: Effects of surface defect and loading mode Article dans une revue avec comité de lectureLIANG, Xiaoyu; HOR, Anis; ROBERT, Camille; SALEM, Mehdi; LIN, Feng; MOREL, Franck (Elsevier BV, 2022-03-08)The mechanical performances of additive manufactured (AM) material are highly dependent on the fabrication process which inevitably results in surface imperfection as well as porosity. In the present study, the high cycle ...
Communication avec acteROBERT, Camille; HOR, Anis; MOREL, Franck; SAINTIER, Nicolas; PALIN-LUC, Thierry (2013)An analysis of high cycle fatigue behavior is done via the numerical simulation of polycrystalline aggregates. Different metallic materials with a FCC crystalline structure, but different cubic elastic coefficients, are ...
Article dans une revue avec comité de lectureHOR, Anis; SAINTIER, Nicolas; ROBERT, Camille; PALIN-LUC, Thierry; MOREL, Franck (Elsevier, 2014)Multiaxial high cycle fatigue modeling of materials is an issue that concerns many industrial domains (automotive, aerospace, nuclear, etc.) and in which many progress still remains to be achieved. Several approaches exist ...