On the calibration of elastoplastic parameters at the microscale via X-ray microtomography and digital volume correlation for the simulation of ductile damage

Abstract : An identification framework is introduced herein to calibrate material parameters at the microscale in order to analyze ductile damage. It is applied to study a dog-bone sample, which is made of spheroidal graphite cast iron, loaded in tension and imaged via in situ microtomography. The region of interest is analyzed via Digital Volume Correlation (DVC) to measure kinematic fields. Finite Element (FE) simulations, which account for the studied microstructure that is explicitly meshed thanks its 3D image, are driven by Dirichlet boundary conditions extracted from DVC measurements. The plastic behavior of the fer-ritic matrix is calibrated via integrated DVC. The three mechanisms of ductile damage are then analyzed in view of the predictions of numerical simulations at the microscopic scale.
Type de document :
Article dans une revue
European Journal of Mechanics - A/Solids, Elsevier, 2018, 72, pp.287-297. 〈10.1016/j.euromechsol.2018.04.010〉
Liste complète des métadonnées

Littérature citée [55 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-01767392
Contributeur : François Hild <>
Soumis le : lundi 16 avril 2018 - 10:55:28
Dernière modification le : jeudi 13 décembre 2018 - 01:30:22

Fichier

EJMA2018-ccsd.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Ante Buljac, Victor-Manuel Trejo-Navas, Modesar Shakoor, Amine Bouterf, Jan Neggers, et al.. On the calibration of elastoplastic parameters at the microscale via X-ray microtomography and digital volume correlation for the simulation of ductile damage. European Journal of Mechanics - A/Solids, Elsevier, 2018, 72, pp.287-297. 〈10.1016/j.euromechsol.2018.04.010〉. 〈hal-01767392〉

Partager

Métriques

Consultations de la notice

228

Téléchargements de fichiers

95