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Modeling of the Heterogeneous Deformation of an Aggregate of Grains

Published online by Cambridge University Press:  21 March 2011

Philippe P. Erieau ,
Thierry P. Hoc  and
Colette C. Rey
Philippe P. Erieau
Affiliation:
Laboratoire MSS-Mat, UMR CNRS 8579, Ecole Centrale Paris, Grande Voie des Vignes, 92295 Châtenay-Malabry, France
Thierry P. Hoc
Affiliation:
Laboratoire MSS-Mat, UMR CNRS 8579, Ecole Centrale Paris, Grande Voie des Vignes, 92295 Châtenay-Malabry, France
Colette C. Rey
Affiliation:
Laboratoire MSS-Mat, UMR CNRS 8579, Ecole Centrale Paris, Grande Voie des Vignes, 92295 Châtenay-Malabry, France
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Abstract

Multiple layers of an Interstitial Free (IF) steel microstructure are polished and analyzed using EBSP and Orientation Imaging Microscopy (OIM) technique. This enables to build a 3D finite element mesh which represents the actual grains arrangement. Then a 30 % reduction plane strain compression is applied on this mesh in order to capture the heterogeneous deformation of the aggregate. After deformation, many grains show large orientation spreads, and thus do not follow a Taylor type assumption. This computation also shows that the stored energy distribution depends on the chosen definition.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 653: Symposium Z – Multiscale Modeling of Materials-2000 , 2000 , Z7.11.1
Copyright
Copyright © Materials Research Society 2001

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