| Numéro |
J. Phys. IV France
Volume 08, Numéro PR8, November 1998
2nd European Mechanics of Materials Conference on Mechanics of Materials with Intrinsic Length Scale : Physics, Experiments, Modelling and Applications
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|---|---|---|
| Page(s) | Pr8-325 - Pr8-332 | |
| DOI | https://doi.org/10.1051/jp4:1998840 | |
2nd European Mechanics of Materials Conference on Mechanics of Materials with Intrinsic Length Scale : Physics, Experiments, Modelling and Applications
J. Phys. IV France 08 (1998) Pr8-325-Pr8-332
DOI: 10.1051/jp4:1998840
École des Mines de Paris, Centre des Matériaux, UMR 7633 du CNRS, BP. 87, 91003 Evry, France
© EDP Sciences 1998
J. Phys. IV France 08 (1998) Pr8-325-Pr8-332
DOI: 10.1051/jp4:1998840
On sire effects in torsion of multi- and polycrystalline specimens
S. Quilici, S. Forest and G. CailletaudÉcole des Mines de Paris, Centre des Matériaux, UMR 7633 du CNRS, BP. 87, 91003 Evry, France
Abstract
Simulations of torsion of copper single, multi- and polycrystals are presented. The stress is laid on an accurate description of intragranular behaviour, which requires the use of parallel computing. If the wire contains up to 1000 grains, the deformation is shown to localize within some weak sections of the specimen. A lower bound of a critical grain number for a multi- to polycrystal plasticity transition is therefore established.
© EDP Sciences 1998