Behaviors of three BCC metals during non-proportional multi-axial loadings: experiments and modeling

Citation
As. Khan et Rq. Liang, Behaviors of three BCC metals during non-proportional multi-axial loadings: experiments and modeling, INT J PLAST, 16(12), 2000, pp. 1443-1458
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Mechanical Engineering
Journal title
INTERNATIONAL JOURNAL OF PLASTICITY
ISSN journal
0749-6419 → ACNP
Volume
16
Issue
12
Year of publication
2000
Pages
1443 - 1458
Database
ISI
SICI code
0749-6419(2000)16:12<1443:BOTBMD>2.0.ZU;2-R
Abstract
Non-proportional torsion-tension and biaxial-compressive experimental resul ts are presented on tantalum, tantalum alloy with 2.5% tungsten, and AerMet 100 steel. These test results form a comprehensive set of data to show the material behaviors at finite strain and wide strain-rate range. Using the parameter set determined from uniaxial constant strain-rate compressive and tensile tests, the capability of a new constitutive model (Khan, A.S., Lia ng, R., 1999. Behaviors of three BCC metal over a wide range of strain rate s and temperatures: experiments and modeling. International Journal of Plas ticity 15, 1089-1109) is shown to accurately predict complex loading paths of current experimental results. Using von Mises equivalent strain, stress, and strain rate, the constitutive model gives excellent predictions of the se non-proportional experimental results. (C) 2000 Elsevier Science Ltd. Al l rights reserved.