NUMERICAL SIMULATIONS OF STRESS-STRAIN BEHAVIOR IN 2-PHASE ALPHA(2)+GAMMA LAMELLAR TIAL ALLOYS

Citation
Bk. Kad et al., NUMERICAL SIMULATIONS OF STRESS-STRAIN BEHAVIOR IN 2-PHASE ALPHA(2)+GAMMA LAMELLAR TIAL ALLOYS, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 193, 1995, pp. 97-103
Citations number
15
Categorie Soggetti
Material Science
ISSN journal
09215093
Volume
193
Year of publication
1995
Pages
97 - 103
Database
ISI
SICI code
0921-5093(1995)193:<97:NSOSBI>2.0.ZU;2-7
Abstract
Polycrystalline stress-strain behavior in a(2) + gamma lamellar TiAl a lloys is numerically simulated, using a rate-dependent thermoelastic-v iscoplastic, finite strain, crystallographic slip formulation elucidat ing the constitutive response of their single crystals of the alloys. Input to the model includes descriptions of the orientation-dependent single-crystal plastic behavior, strain rate sensitivity on the indivi dual slip system level. The model accomplishes the transition to the a veraged aggregate behavior, and is a reliable technique to monitor and track the various anisotropies of single crystals as implicit in the polycrystalline aggregates.