Simulation of damage evolution in discontinously reinforced metal matrix composites: a phase-field model

TitleSimulation of damage evolution in discontinously reinforced metal matrix composites: a phase-field model
Publication TypeJournal Article
Year of Publication2009
AuthorsBiner SB, Hu SY
Journal TitleInternational Journal of Fracture
Volume158
Pages99-105
Date PublishedAug
ISBN Number0376-9429
Accession NumberISI:000269078900002
Keywordscracks, damage, ductility, growth, metal matrix composites, microelasticity theory, microstructures, phase-field model, simulation, solids, voids
Abstract

In this study, a phase-field model is introduced to model the damage evolution, due to particle cracking in reinforced composites in which matrix deformation is described by an elastic-plastic constitutive law exhibiting linear hardening behavior. In order to establish the viability of the algorithm, the simulations are carried out for crack extension from a square hole in isotropic elastic solid under the complex loading path, and composites having the same volume fraction of reinforcements with two different particle sizes. The observed cracking patterns and development of the stress-strain curves agree with the experimental observations and previous numerical studies. The algorithm offers significant advantages to describe the microstructure and topological changes associated with the damage evolution in comparison to conventional simulation algorithms, due to the absence of formal meshing.

URL<Go to ISI>://000269078900002
DOI10.1007/S10704-009-9351-6