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Hierarchical models of plasticity: dislocation nucleation and interaction

Phillips, Rob and Rodney, David and Shenoy, Vivek and Tadmor, Ellad and Ortiz, Michael (1999) Hierarchical models of plasticity: dislocation nucleation and interaction. Modelling and Simulation in Materials Science and Engineering, 7 (5). pp. 769-780. ISSN 0965-0393. doi:10.1088/0965-0393/7/5/309.

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One avenue being pursued in the development of dislocation-based models of plasticity is the explicit simulation of the dynamics of dislocations, based on the recognition that such dislocations are the carriers of plasticity. The construction of models of dislocation dynamics requires insights into both the nucleation and interaction of dislocations, many of the details of which fall outside the domain of validity of the linear theory of elasticity. The aim of the present paper is to show how preliminary steps have been made to elucidate the mechanisms of dislocation nucleation and interaction, and to illustrate how such information can be imported into explicit models of dislocation dynamics. This effort reflects, in part, the research program of Gilles Canova, to whom the present volume is dedicated and to whom the authors dedicate this paper.

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Phillips, Rob0000-0003-3082-2809
Ortiz, Michael0000-0001-5877-4824
Additional Information:© 2004 IOP Publishing Ltd Received 5 December 1998, accepted for publication 3 March 1999, Print publication: Issue 5 (September 1999) GILLES CANOVA MEMORIAL SYMPOSIUM MULTI-SCALE MODELLING OF MECHANICAL PROPERTIES OF MATERIALS Autrans, France, 12-15 June 1998 The authors would like to express their sorrow at the untimely death of Gilles Canova and to dedicate this paper to the memory of many happy hours spent in his company, and to his family, Marie, Sandrine, Lauren, Antoine and Mathieu. In addition, we are grateful to Glen Beltz for many discussions and the use of his code, and to J Bassani, E van der Giessen, M Fivel and C Robertson for numerous discussions on implementing the type of hierarchy described here. We are also grateful for support from Electricit´e de France, the NSF through the Brown University MRSEC program and a Career Award, and the ASCI Center at Caltech.
Issue or Number:5
Record Number:CaltechAUTHORS:PHImsmse99
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1663
Deposited By: Archive Administrator
Deposited On:09 Feb 2006
Last Modified:08 Nov 2021 19:12

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