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Temperature Effects and Fast-Moving Screw Dislocations at High Strain Rate Deformations

Published online by Cambridge University Press:  10 February 2011

A. Roos ,
E.D. Metselaar ,
J.TH.M. De Hosson ,
H.H.M. Cleveringa  and
E. Van Der Giessen
A. Roos
Affiliation:
Laboratory of Applied Physics, Materials Science Center, Netherlands Institute of Metals Research, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands. e-mail:, [email protected]
E.D. Metselaar
Affiliation:
Laboratory of Applied Physics, Materials Science Center, Netherlands Institute of Metals Research, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands. e-mail:, [email protected]
J.TH.M. De Hosson
Affiliation:
Laboratory of Applied Physics, Materials Science Center, Netherlands Institute of Metals Research, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands. e-mail:, [email protected]
H.H.M. Cleveringa
Affiliation:
Department of Mechanical Engineering, Micromechanics of Materials Group, Netherlands Institute for Metals Research, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands.
E. Van Der Giessen
Affiliation:
Department of Mechanical Engineering, Micromechanics of Materials Group, Netherlands Institute for Metals Research, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands.
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Abstract

In this paper, shear deformation at high strain rates is modeled within the framework of discrete dislocation plasticity. The method of discrete dislocation plasticity is extended to incorporate the temperature rise induced by moving dislocations. Also, the stress and displacement fields of a screw dislocation on inclined planes in a periodic structure are developed. The influence on the temperature rise on various micro-mechanical processes is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 538: Symposium J – Multiscale Modelling of Materials , 1998 , 93
Copyright
Copyright © Materials Research Society 1999

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