Modeling of inelastic deformation of f.c.c. single- and polycrystalline materials with low stacking fault energies[Face Centered Cubic]
A new rate-independent constitutive model for plastic deformation of crystalline materials deforming by slip and twinning has been formulated, and implemented in a finite-element program. The authors have simulated three different structural levels by choosing representative volume elements (RVEs) as (1) a small part of a single crystal for the analysis of the heterogeneity of plastic deformation in single crystals, (2) a whole single crystal for polycrystal simulations, and (3) a group of crystals for a Taylor-type model of polycrystals. The authors show that the predictions for the texture and stress-strain response from the model are in reasonably good agreement with experiments in plane-strain compression for a different single crystal and polycrystalline f.c.c. materials.
- Research Organization:
- UTC Research Center, East Hartford, CT (US)
- Sponsoring Organization:
- US Department of the Army; National Science Foundation (NSF)
- OSTI ID:
- 20015023
- Resource Relation:
- Conference: Multiscale Modeling of Materials, Boston, MA (US), 11/30/1998--12/03/1998; Other Information: Single article reprints are available through University Microfilms Inc., 300 North Zeeb Rd., Ann Arbor, Michigan 48106 (US); PBD: 1999; Related Information: In: Multiscale modeling of materials. Materials Research Society symposium proceedings: Volume 538, by Bulatov, V.V.; Diaz de la Rubia, T.; Phillips, R.; Kaxiras, E.; Ghoniem, N. [eds.], 607 pages.
- Country of Publication:
- United States
- Language:
- English
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