✦ LIBER ✦

Micromechanical modeling of the elastic-viscoplastic behavior of polycrystalline steels having different microstructures

✍ Scribed by S. Berbenni; V. Favier; X. Lemoine; M. Berveiller

Publisher: Elsevier Science
Year: 2004
Tongue: English
Weight: 198 KB
Volume: 372
Category: Article
ISSN: 0921-5093
DOI: 10.1016/j.msea.2003.11.010

No coin nor oath required. For personal study only.

✦ Synopsis

A micromechanical model based on a new and non-conventional self-consistent formulation has been applied to describe the elasticviscoplastic 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.

📜 SIMILAR VOLUMES

Micromechanics modelling for the constit

Micromechanics modelling for the constitutive behavior of polycrystalline shape memory alloys—II. Study of the individual phenomena

✍ Qing Ping Sun; Keh Chih Hwang 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 928 KB

Polycrystalline modeling of the cyclic h

Polycrystalline modeling of the cyclic hardening/softening behavior of an austenitic–ferritic stainless steel

✍ P. Evrard; I. Alvarez-Armas; V. Aubin; S. Degallaix 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 684 KB

As other metallic materials, in low-cycle fatigue, duplex stainless steels (DSS) exhibit a cyclic hardening, followed by a cyclic softening, before stabilization of the stress. In order to simulate the cyclic hardening/softening curves in low-cycle fatigue of an austenitic-ferritic or duplex stainle

A Micromechanical Study of the Deformati

A Micromechanical Study of the Deformation Behavior of TRIP-Assisted Multiphase Steels as a Function of the Microstructural Parameters of the Retained Austenite

✍ Denny Tjahjanto; Sergio Turteltaub; Akke Suiker; Sybrand van der Zwaag 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 396 KB 👁 1 views

A semi-analytical model for the behavior

A semi-analytical model for the behavior of saturated viscoplastic materials containing two populations of voids of different sizes

✍ Jérôme Julien; Mihail Gărăjeu; Jean-Claude Michel 📂 Article 📅 2011 🏛 Elsevier Science 🌐 English ⚖ 974 KB

This paper presents a micromechanical model for a porous viscoplastic material containing two populations of pressurized voids of different sizes. Three scales are distinguished: the microscopic scale (corresponding to the size of the small voids), the mesoscopic scale (corresponding to the size of

Modellization of the influence of an uns

Modellization of the influence of an unstable microstructure on the viscoplastic behaviour of a 17-12SPH stainless steel at 600 °C: Delobelle, P. Scr. Metall. Mater. June 1991 25, (6), 1357–1362 (in French)

📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 48 KB