A kinetic two-scale damage model for high-cycle fatigue simulation using multi-temporal Latin framework - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue European Journal of Mechanics - A/Solids Année : 2019

A kinetic two-scale damage model for high-cycle fatigue simulation using multi-temporal Latin framework

Résumé

The goal of this paper is to introduce a model order reduction method for high-cycle fatigue simulations using a kinetic damage model, i.e. a constitutive model in which the damage evolution law is defined as a rate form for the damage variable D. In the framework of continuum mechanics, high-cycle fatigue simulation involves a two-scale damage model, which includes macroscopic elastic and microscopic plastic behaviours, for a very large number of cycles. Unlike the classical usage of the two-scale damage model by Lemaitre and co-workers, where damage is calculated as a post-process of an elastic or elasto-plastic macroscopic analysis, in this work, a fully coupled analysis is conducted assuming a macroscopic damage feedback from its microscopic counterpart. Damage is considered to be isotropic with micro-defect closure effect on both macroscopic and microscopic scales. To overcome the numerical expense, the large time increment (LATIN) method is used as a linearisation framework, where the constitutive behaviour is separated from the global admissibility which in turn is solved through separation of variables using a proper generalised decomposition (PGD)-based model reduction method. A multi-temporal discretisation approach is henceforth used based on finite element like description in time for the quantities of interest, providing a sophisticated numerical approach suitable for high-cycle fatigue simulation under complex loading.
Fichier principal
Vignette du fichier
bhattacharyya2019.pdf (1.58 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02190831 , version 1 (02-10-2020)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

Citer

Mainak Bhattacharyya, Amélie Fau, Rodrigue Desmorat, Shadi Alameddin, David Néron, et al.. A kinetic two-scale damage model for high-cycle fatigue simulation using multi-temporal Latin framework. European Journal of Mechanics - A/Solids, 2019, 77, pp.103808. ⟨10.1016/j.euromechsol.2019.103808⟩. ⟨hal-02190831⟩
208 Consultations
121 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More