Comparison of a statistical-mechanics based plasticity model with discrete dislocation plasticity calculations

S. Yefimov, I. Groma, E. Van der Giessen

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

A novel, nonlocal version of continuum crystal plasticity theory is proposed, which is based on a statistical description of dislocations. It involves a set of evolution equations for the dislocation density and for the sign-dislocation density, which are coupled to the continuum slip description. The theory is applied to the problem of shearing of a two-dimensional composite material. The results are compared, in qualitative manner, to the results of recent discrete dislocation predictions of the same problem. The new theory is shown to be able to pick up the distinct dependence on particle morphology and the associated size dependence.

Original languageEnglish
Pages (from-to)Pr5103-Pr5110
JournalJournal De Physique. IV : JP
Volume11
Issue number5
Publication statusPublished - Sep 1 2001
Event5th European Mechanics of Materials Conference on Scale Transitions from Atomistics to Continuum Plasticity EUROMECH-MECAMAT'2001 - Delft, Netherlands
Duration: Mar 5 2001Mar 8 2001

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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