Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Multiphase continuum models for fiber-reinforced materials

Abstract : This contribution addresses the formulation of a generalized continuum model called multi-phase model aimed at describing more accurately the mechanical behavior of fiber-reinforced materials. Improving on the classical macroscopic description of heterogeneous materials by an effective homogeneous Cauchy medium, such models rely on the superposition of several continua (or phases) possessing their own kinematics at the macroscopic level and being in mutual interaction (in the same spirit of deformable porous media). Up to now, they have only been formulated based on phenomenological assumptions and the identification of the corresponding constitutive parameters remained unclear. The aim of this paper is threefold. First, a homogenization procedure is described, enabling to derive constitutive parameters from the resolution of a generalized auxiliary problem on a classical heterogeneous microstructure. Second, analytical and numerical derivation of these properties is performed in various cases. Finally, illustrative applications on boundary-value problems assess the validity of the homogenization procedure and illustrate the relevance of such generalized models which are able to capture scale effects and to model crack bridging and delaminated configurations at the macroscopic level. It is also shown to encompass results of shear-lag models for analyzing stress transfers in fiber/matrix composites.
Type de document :
Article dans une revue
Liste complète des métadonnées

Littérature citée [57 références]  Voir  Masquer  Télécharger

https://hal-enpc.archives-ouvertes.fr/hal-01849299
Contributeur : Jérémy Bleyer <>
Soumis le : mercredi 25 juillet 2018 - 20:50:29
Dernière modification le : vendredi 17 juillet 2020 - 17:08:47
Archivage à long terme le : : vendredi 26 octobre 2018 - 15:57:48

Fichier

multiphase_continuum_revision....
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Jeremy Bleyer. Multiphase continuum models for fiber-reinforced materials. Journal of the Mechanics and Physics of Solids, Elsevier, 2018, ⟨10.1016/j.jmps.2018.07.018⟩. ⟨hal-01849299⟩

Partager

Métriques

Consultations de la notice

293

Téléchargements de fichiers

468