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International Journal of Forming Processes
1292-7775
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 ARTICLE VOL 10/1 - 2007  - pp.67-87  - doi:10.3166/ijfp.10.67-87
TITLE
Anisotropic Elasto-plastic Model for Large Metal Forming Deformation Processes

ABSTRACT
The paper deals with an elasto-plastic model for anisotropic crystalline material, subjected to small elastic strains but large elastic rotations and large plastic deformations, a feature commonly found in metal forming processes. Cases of plane strain and plane stress state are analyzed and locally homogeneous processes are simulated. Computational results underline the role played in the theory by different material constants, as well as the explicit role of the plastic spin. The proposed model can describe the change of the anisotropy axes, experimentally put into evidence in orthotropic sheets deformed along the direction different from those of orthotropy, if and only if the plastic spin is non vanishing.


AUTEUR(S)
Sanda CLEJA-TIGOIU

KEYWORDS
Elasto-plastic, Orthotropy, Plastic Spin, Large Deformation, Yield Condition.

CITATIONS
ijfp.revuesonline.com/revues/5/citation/9630.html

LANGUE DE L'ARTICLE
Anglais

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