COMPUTER-SIMULATION OF PLASTIC BEHAVIOR OF SINGLE-CRYSTALS

Authors
GROMA I PAWLEY GS
Citation
I. Groma et Gs. Pawley, COMPUTER-SIMULATION OF PLASTIC BEHAVIOR OF SINGLE-CRYSTALS, Philosophical magazine. A. Physics of condensed matter. Defects and mechanical properties, 67(6), 1993, pp. 1459-1470
Citations number
31
Categorie Soggetti
Physics, Applied
Journal title
Philosophical magazine. A. Physics of condensed matter. Defects and mechanical properties → ACNP
ISSN journal
01418610
Volume
67
Issue
6
Year of publication
1993
Pages
1459 - 1470
Database
ISI
SICI code
0141-8610(1993)67:6<1459:COPBOS>2.0.ZU;2-O
Abstract
A computer simulation model is proposed to investigate the plastic beh aviour of single crystals oriented for single slip. The dislocation sy stem consists of parallel edge dislocations. The velocity of a disloca tion is proportional to the local shear stress and the generation of n ew dislocation dipoles is allowed. It is shown by computations on an A MT DAP that by applying a constant shear rate the stress-strain relati onship corresponds to stage I of single-crystal plastic deformation, a nd a long-range undulation appears in the stress field of the dislocat ion system.