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Modeling of Inelastic Deformation of f.c.c, Single- and Polycrystalline Materials with Low Stacking Fault Energies

Published online by Cambridge University Press:  10 February 2011

A. Staroselsky  and
L. Anand
A. Staroselsky
Affiliation:
UTC Research Center, 411 Silver Lane, MS 129-73 East Hartford, CT 06108, USA
L. Anand
Affiliation:
Department of Mechanical Engineering MIT, Cambridge, MA 02139, USA
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Abstract

A new rate-independent constitutive model for plastic deformation of crystalline materials deforming by slip and twinning has been formulated, and implemented in a finite-element program. We have simulated three different structural levels by choosing representative volume elements (RVEs) as (i) a small part of a single crystal for the analysis of the heterogeneity of plastic deformation in single crystals, (ii) a whole single crystal for polycrystal simulations, and (iii) a group of crystals for a Taylor-type model of polycrystals. We show that the predictions for the texture and stress-strain response from the model are in reasonably good agreement with experiments in plane-strain compression for a different single crystal and polycrystalline f.c.c, materials.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 538: Symposium J – Multiscale Modelling of Materials , 1998 , 515
Copyright
Copyright © Materials Research Society 1999

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