Elasto-visco-plastic modeling of mild steels for sheet forming applications over a large range of strain rates

Autor: Farid Abed-Meraim, Xavier Lemoine, Tudor Balan, Jean-Marc Pipard
Přispěvatelé: Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), ArcelorMittal Maizières Research SA, ArcelorMittal, Contrat ArcelorMittal
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Materials science
Constitutive equation
[PHYS.MECA.GEME]Physics [physics]/Mechanics [physics]/Mechanical engineering [physics.class-ph]
02 engineering and technology
Large range
01 natural sciences
Finite element simulation
Mild steel
[SPI]Engineering Sciences [physics]
Materials Science(all)
Constitutive behavior
Modelling and Simulation
0103 physical sciences
Ultimate tensile strength
[SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph]
[PHYS.MECA.SOLID]Physics [physics]/Mechanics [physics]/Solid mechanics [physics.class-ph]
General Materials Science
[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering
Mécanique: Mécanique des matériaux [Sciences de l'ingénieur]
Visco-plasticity
010302 applied physics
business.industry
Mechanical Engineering
Applied Mathematics
Structural engineering
Mechanics
[PHYS.MECA]Physics [physics]/Mechanics [physics]
021001 nanoscience & nanotechnology
Condensed Matter Physics
Mechanics of Materials
Modeling and Simulation
Hardening (metallurgy)
0210 nano-technology
business
Microstructure-related parameters
Zdroj: International Journal of Solids and Structures
International Journal of Solids and Structures, Elsevier, 2013, 50 (16-17), pp.2691-2700. ⟨10.1016/j.ijsolstr.2013.04.022⟩
ISSN: 0020-7683
DOI: 10.1016/j.ijsolstr.2013.04.022⟩
Popis: A physically based elasto-visco-plastic constitutive model is presented and compared to experimental results for three different mild steels. The experiments consist of tensile tests ranging from quasi-static conditions up to strain rates of 103 s-1 as well as quasi-static simple and reverse shear tests at different amounts of pre-strain. Additional two-step sequential mechanical tests (Bauschinger and orthogonal effects) have been performed to further evaluate the ability of the model to describe strain-path changes at moderate/large strains. The model requires significantly fewer material parameters compared to other visco-plasticity models from the literature, while being able to describe some of the main features of the strain-rate sensitivity of mild steels. Accordingly, the parameter identification is simple and intuitive, requiring a relatively small set of experiments. The strain-rate sensitivity modeling is not restricted to a particular hardening law and thus provides a general framework in which advanced hardening equations can be adopted.; International audience; A physically based elasto-visco-plastic constitutive model is presented and compared to experimental results for three different mild steels. The experiments consist of tensile tests ranging from quasi-static conditions up to strain rates of 103 s-1 as well as quasi-static simple and reverse shear tests at different amounts of pre-strain. Additional two-step sequential mechanical tests (Bauschinger and orthogonal effects) have been performed to further evaluate the ability of the model to describe strain-path changes at moderate/large strains. The model requires significantly fewer material parameters compared to other visco-plasticity models from the literature, while being able to describe some of the main features of the strain-rate sensitivity of mild steels. Accordingly, the parameter identification is simple and intuitive, requiring a relatively small set of experiments. The strain-rate sensitivity modeling is not restricted to a particular hardening law and thus provides a general framework in which advanced hardening equations can be adopted.
Databáze: OpenAIRE
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