Aspects of non-associated single crystal plasticity: Influence of non-Schmid effects and localization analysis

Steinmann, P. , Kuhl, E. and Stein, E. (1998) Aspects of non-associated single crystal plasticity: Influence of non-Schmid effects and localization analysis. International Journal of Solids and Structures, 35(33), pp. 4437-4456. (doi: 10.1016/S0020-7683(97)00241-2)

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Abstract

The aim of this work is the consideration of so-called non-Schmid effects within non-associated single crystal plasticity at small strains. To this end, two additional activating mechanisms for dislocation flow on a slip system are modelled. For convenience the corresponding algorithmic setting is discussed in the sequel. Next, the influence of non-Schmid effects and non-associativity on the response behaviour of a single crystal within a simple shear deformation is examined. Subsequently, the theoretical framework for the localization analysis within multisurface plasticity is presented. Finally, the impact of non-Schmid effects on the orientation of a possible localization band and the corresponding critical hardening modulus are investigated for a simple model problem.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Steinmann, Professor Paul
Authors: Steinmann, P., Kuhl, E., and Stein, E.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:International Journal of Solids and Structures
Publisher:Elsevier
ISSN:0020-7683
ISSN (Online):1879-2146
Published Online:21 September 1998

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