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A double inclusion homogenization scheme for polycrystals with hierarchal topologies: Application to twinning in Mg alloys

Juan,P-A, Berbenni,S, Barnett,MR, Tomé,CN and Capolungo,L 2014, A double inclusion homogenization scheme for polycrystals with hierarchal topologies: Application to twinning in Mg alloys, International Journal of Plasticity, vol. 60, pp. 182-196, doi: 10.1016/j.ijplas.2014.04.001.

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Title A double inclusion homogenization scheme for polycrystals with hierarchal topologies: Application to twinning in Mg alloys
Author(s) Juan,P-A
Berbenni,S
Barnett,MRORCID iD for Barnett,MR orcid.org/0000-0001-8287-9044
Tomé,CN
Capolungo,L
Journal name International Journal of Plasticity
Volume number 60
Start page 182
End page 196
Total pages 15
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2014
ISSN 0749-6419
Keyword(s) Magnesium
Micromechanics
Twinning
Science & Technology
Technology
Engineering, Mechanical
Materials Science, Multidisciplinary
Mechanics
Engineering
Materials Science
VISCOPLASTIC HETEROGENEOUS MATERIALS
FINITE-ELEMENT MODEL
SELF-CONSISTENT
NONLINEAR COMPOSITES
NEUTRON-DIFFRACTION
TEXTURE DEVELOPMENT
DEFORMATION
PLASTICITY
BEHAVIOR
METALS
Summary The 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.
Language eng
DOI 10.1016/j.ijplas.2014.04.001
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 861199 Basic Metal Products (incl. Smelting, Rolling, Drawing and Extruding) not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2014, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30070403

Document type: Journal Article
Collection: Institute for Frontier Materials
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