File(s) under permanent embargo
A double inclusion homogenization scheme for polycrystals with hierarchal topologies: Application to twinning in Mg alloys
journal contribution
posted on 2014-01-01, 00:00 authored by P-A Juan, S Berbenni, Matthew BarnettMatthew Barnett, C N Tomé, L CapolungoThe present work introduces a double inclusion elasto-plastic self-consistent (DI-EPSC) scheme for topologies in which crystals can contain subdomains (i.e. twins, etc.). The approach yields a direct coupling between the mechanical response of grains and their subdomains via a concentration relationship on mean fields derived from both the Eshelby and the Tanaka-Mori properties. The latent effect caused by twinning on the mechanical response is observed on both initially extruded and non-textured Mg alloys. For twinned grains, it is shown that deformation system activities and plastic strain distributions within twins drastically depend on the interaction with parent domains. Moreover, a quantitative study on the coupled influence of secondary slip activities on the material response is proposed. © 2014 Published by Elsevier Ltd.
History
Journal
International Journal of PlasticityVolume
60Pagination
182 - 196Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
0749-6419Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2014, ElsevierUsage metrics
Keywords
MagnesiumMicromechanicsTwinningScience & TechnologyTechnologyEngineering, MechanicalMaterials Science, MultidisciplinaryMechanicsEngineeringMaterials ScienceELASTIC-PLASTIC BEHAVIORFINITE-ELEMENT MODELSELF-CONSISTENTNONLINEAR COMPOSITESNEUTRON-DIFFRACTIONTEXTURE DEVELOPMENTDEFORMATIONSTRAINPREDICTIONCRYSTALSMechanical Engineering
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC