Computer simulation of plastic behaviour of single crystals

I. Groma, G. S. Pawley

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

A computer simulation model is proposed to investigate the plastic behaviour of single crystals oriented for single slip. The dislocation system consists of parallel edge dislocations. The velocity of a dislocation is proportional to the local shear stress and the generation of new dislocation dipoles is allowed. It is shown by computations on an AMT DAP that by applying a constant shear rate the stress-strain relationship corresponds to stage I of single-crystal plastic deformation, and a long-range undulation appears in the stress field of the dislocation system.

Original languageEnglish
Pages (from-to)1459-1470
Number of pages12
JournalPhilosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties
Volume67
Issue number6
DOIs
Publication statusPublished - 1993

Fingerprint

Dislocations (crystals)
plastics
computerized simulation
Single crystals
Plastics
Edge dislocations
single crystals
Computer simulation
Shear deformation
Shear stress
Plastic deformation
stress-strain relationships
edge dislocations
shear stress
stress distribution
plastic deformation
slip
dipoles
shear

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)
  • Metals and Alloys

Cite this

Computer simulation of plastic behaviour of single crystals. / Groma, I.; Pawley, G. S.

In: Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties, Vol. 67, No. 6, 1993, p. 1459-1470.

Research output: Contribution to journalArticle

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