A thermodynamically consistent theory of stress-gradient plasticity

Reddy BD, Steinmann P, Kergaßner A (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Journal of the Mechanics and Physics of Solids Elsevier

Book Volume: 147

Pages Range: 104266

Article Number: 104266

DOI: 10.1016/j.jmps.2020.104266

Abstract

As an extension to strain-gradient models of size-dependent plastic behaviour, this work proposes a model for a stress-gradient theory. The model is distinguished from earlier works on the topic by its being embedded in a thermodynamically consistent framework. The development is carried out in the context of single-crystal plasticity, and draws on thermodynamically consistent models for single-crystal conventional and strain-gradient plasticity. The model is explored numerically using the example of torsion of a thin wire comprising a face centred cubic crystal, and its behaviour compared with that based on a recent disequilibrium density model of size-dependent plasticity.

Authors with CRIS profile

Paul Steinmann Lehrstuhl für Technische Mechanik (LTM) Andreas Kergaßner Lehrstuhl für Technische Mechanik (LTM)

Involved external institutions

University of Cape Town (UCT) ZA South Africa (ZA)

How to cite

APA:

Reddy, B.D., Steinmann, P., & Kergaßner, A. (2021). A thermodynamically consistent theory of stress-gradient plasticity. Journal of the Mechanics and Physics of Solids, 147, 104266. https://doi.org/10.1016/j.jmps.2020.104266

MLA:

Reddy, B. D., Paul Steinmann, and Andreas Kergaßner. "A thermodynamically consistent theory of stress-gradient plasticity." Journal of the Mechanics and Physics of Solids 147 (2021): 104266.

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