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.

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, Professor 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