Micromechanical modeling of the elastic-viscoplastic behavior of polycrystalline steels having different microstructures
| Autor: | Stéphane Berbenni, Véronique Favier, X. Lemoine, Marcel Berveiller |
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| Rok vydání: | 2004 |
| Předmět: |
High-strength low-alloy steel
Materials science Viscoplasticity Dual-phase steel business.industry Mechanical Engineering Constitutive equation Structural engineering Strain rate Strain hardening exponent engineering.material Condensed Matter Physics Dynamic load testing Mechanics of Materials engineering General Materials Science Composite material business Tensile testing |
| Zdroj: | Materials Science and Engineering: A. 372:128-136 |
| ISSN: | 0921-5093 |
| DOI: | 10.1016/j.msea.2003.11.010 |
| Popis: | A micromechanical model based on a new and non-conventional self-consistent formulation has been applied to describe the elastic-viscoplastic behavior of steels with different microstructures in a wide range of strain rates. Good agreement between experimental and model predictions is found concerning the behavior of a ferritic single-phase interstitial free steel (IF) during quasi-static and dynamic tensile loadings. Due to the introduction of key physical parameters in the mathematical model, a good description is obtained of the differences observed between the constitutive behaviors of IF, high-strength low alloy (HSLA) and dual-phase (DP450, DP500 and DP600) steels. These differences concern strength, strain hardening as well as strain rate sensitivity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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