Computational and theoretical aspects of a grain-boundary model at finite deformations

McBride, A.T. , Gottschalk, D., Reddy, B.D., Wriggers, P. and Javili, A. (2016) Computational and theoretical aspects of a grain-boundary model at finite deformations. Technische Mechanik, 36(1-2), pp. 92-109.

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Abstract

A model to describe the role of grain boundaries in the overall response of a polycrystalline material at small length scales subject to finite deformations is presented. Three alternative thermodynamically consistent plastic flow relations on the grain boundary are derived and compared using a series of numerical experiments. The numerical model is obtained by approximating the governing relations using the finite element method. In addition, the infinitesimal and finite deformation theories are compared, and the limitations of the former made clear.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:McBride, Dr Andrew
Authors: McBride, A.T., Gottschalk, D., Reddy, B.D., Wriggers, P., and Javili, A.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:Technische Mechanik
Publisher:Magdeburger Verein für Technische Mechanik e.V. ; Otto-von-Guericke-University Magdeburg
ISSN:0232-3869
ISSN (Online):2199-9244
Copyright Holders:Copyright © 2016 The Authors
First Published:First published in Technische Mechanik 36(1-2):92-109
Publisher Policy:Reproduced in accordance with the publisher policy

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