A homogenization-based damage model for stiffness loss in ductile metal-matrix composites - Archive ouverte HAL Access content directly
Journal Articles Journal of the Mechanics and Physics of Solids Year : 2020

A homogenization-based damage model for stiffness loss in ductile metal-matrix composites

Abstract

The aim of this paper is to develop a homogenized model that permits to describe the progressive loss of stiffness observed experimentally on ductile metal-matrix composites subjected to mechanical loadings. A two-step homogenization procedure is proposed to describe the effect of damage on the elastic properties. Since damage is solely driven by plastic deformation, a Gurson-type model is considered to describe the nucleation and growth of voids. Completed by appropriate evolution equations of the microstructure, this model of plasticity is used to update the elastic properties that are described by a mean-field homogenization scheme. The complete incremental model is implemented numerically and applied to the prediction of the stiffness loss. The model predictions are in very good agreement with experimental results on Al-SiC composites, cast irons and steel composites.

Domains

Materials
Fichier principal
Vignette du fichier
PIMM_JMPS_2020_DOHRMI.pdf (862.34 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-02532883 , version 1 (06-04-2020)

Identifiers

Cite

Khaoula Dorhmi, Leo Morin, Katell Derrien, Zehoua Hadjem-Hamouche, Jean-Pierre Chevalier. A homogenization-based damage model for stiffness loss in ductile metal-matrix composites. Journal of the Mechanics and Physics of Solids, 2020, 137, pp.1-16. ⟨10.1016/j.jmps.2019.103812⟩. ⟨hal-02532883⟩
64 View
87 Download

Altmetric

Share

Gmail Facebook X LinkedIn More