A Multiscale Model Based On Intragranular Microstructure: Influence Of Grain-Scale Substructure On Macroscopic Behaviour Of An IF-Steel During Complex Load Paths

Journal Article · Thu May 17 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2740996· OSTI ID:21057360

Franz, Gerald; Abed-Meraim, Farid; Berveiller, Marcel ^[1]; Zineb, Tarak Ben ^[2]; Lemoine, Xavier ^[3]

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1. LPMM, UMR CNRS 7554, ENSAM 4 rue Augustin Fresnel, 57078 Metz Cedex 3 (France)
2. LEMTA, UMR CNRS 7563, Nancy Universite 2 rue Jean Lamour, 54519 Vandoeuvre-les-Nancy (France)
3. Centre Automobile Produit, Arcelor Research S.A., voie Romaine B.P. 30320, 57283 Maizieres-les-Metz (France)

A microstructural model, based on Peeters' works, is implemented into a large strain self-consistent scheme, leading to the multiscale model which achieves, for each grain, the calculation of slip activity, with help of regularized formulation drawn from the visco-plasticity framework, and the dislocation microstructure evolution. This paper focuses on the relationship between macroscopic hardening/softening effects and induced microstructure during monotonic and two-stage strain paths.

• OSTI ID: 21057360
• Journal Information: AIP Conference Proceedings, Vol. 908, Issue 1; Conference: NUMIFORM '07: 9. international conference on numerical methods in industrial forming processes, Porto (Portugal), 17-21 Jun 2007; Other Information: DOI: 10.1063/1.2740996; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
DISLOCATIONS
HARDENING
MATHEMATICAL MODELS
MICROSTRUCTURE
NUMERICAL ANALYSIS
PLASTICITY
SLIP
STEELS
STRAINS
VISCOSITY