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

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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
Title of host publicationJournal De Physique. IV : JP
EditorsS. Forest, E. Van der Giessen, L. Kubin
Volume11
Edition5
Publication statusPublished - Sep 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

Other

Other5th European Mechanics of Materials Conference on Scale Transitions from Atomistics to Continuum Plasticity EUROMECH-MECAMAT'2001
CountryNetherlands
CityDelft
Period3/5/013/8/01

Fingerprint

statistical mechanics
plastic properties
continuums
shearing
slip
composite materials
predictions
crystals

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Yefimov, S., Groma, I., & Van der Giessen, E. (2001). Comparison of a statistical-mechanics based plasticity model with discrete dislocation plasticity calculations. In S. Forest, E. Van der Giessen, & L. Kubin (Eds.), Journal De Physique. IV : JP (5 ed., Vol. 11)

Comparison of a statistical-mechanics based plasticity model with discrete dislocation plasticity calculations. / Yefimov, S.; Groma, I.; Van der Giessen, E.

Journal De Physique. IV : JP. ed. / S. Forest; E. Van der Giessen; L. Kubin. Vol. 11 5. ed. 2001.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Yefimov, S, Groma, I & Van der Giessen, E 2001, Comparison of a statistical-mechanics based plasticity model with discrete dislocation plasticity calculations. in S Forest, E Van der Giessen & L Kubin (eds), Journal De Physique. IV : JP. 5 edn, vol. 11, 5th European Mechanics of Materials Conference on Scale Transitions from Atomistics to Continuum Plasticity EUROMECH-MECAMAT'2001, Delft, Netherlands, 3/5/01.
Yefimov S, Groma I, Van der Giessen E. Comparison of a statistical-mechanics based plasticity model with discrete dislocation plasticity calculations. In Forest S, Van der Giessen E, Kubin L, editors, Journal De Physique. IV : JP. 5 ed. Vol. 11. 2001
Yefimov, S. ; Groma, I. ; Van der Giessen, E. / Comparison of a statistical-mechanics based plasticity model with discrete dislocation plasticity calculations. Journal De Physique. IV : JP. editor / S. Forest ; E. Van der Giessen ; L. Kubin. Vol. 11 5. ed. 2001.
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