Implementation and comparison of advanced behaviour laws for sheet metal forming
Communication avec acte
Auteur
RACZ, Sever-Gabriel 
LEMOINE, Xavier HADDAG, Badis ABED-MERAIM, FaridRésumé
This contribution concerns the implementation in the FE code Abaqus/Explicit of anisotropic elastoplastic behaviour laws for sheet metal forming. Several hardening laws are considered: isotropic hardening (Swift, Voce), kinematic hardening (Armstrong-Frederick), combinations of both as well as the microstructural model of Teodosiu-Hu. The initial anisotropy is described by the Hill'48 yield function. A specific, explicit time integration scheme is developed for use with shell elements. The validation of the implementation and the comparison between the different hardening laws is made using rheological tests. Several different monotonic tests are used: tensile test, shear test and plane strain test, together with two-path tests: tensile+shear and shear-to-shear (Bauschinger). A cross-shape cup drawing test is used as an application for a deeper comparison of the real benefit of the different hardening laws.
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Communication avec acte; ;CHALAL, Hocine; ABED-MERAIM, Farid ; BALAN, Tudor (Francisco Chinesta , Yvan Chastel and Mohamed El Mansori, 2011)
Within the framework of sheet metal forming, the importance of hardening models for springback predictions has been often emphasized. While some specific applications require very accurate models, in many common situations ...
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Article dans une revue avec comité de lecture;ABED-MERAIM, Farid ; BALAN, Tudor (Elsevier, 2009)
Sheet metal forming processes generally involve large deformations together with complex loading sequences. In order to improve numerical simulation predictions of sheet part forming, physically-based constitutive models ...
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Communication sans acte;ABED-MERAIM, Farid ; BALAN, Tudor (2007)
The aim of this work is to study the strain localization during the plastic deformation of sheets metals. This phenomenon is precursor for the fracture of drawing parts, thus its prediction using advanced behavior models ...
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Article dans une revue avec comité de lecture;ABED-MERAIM, Farid ; BALAN, Tudor (Elsevier, 2008)
Sheet metal forming processes generally involve large deformations together with complex loading sequences. In order to improve numerical simulation predictions of sheet parts forming, physically-based constitutive models ...
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Communication avec acteHADDAG, Badis; ABED-MERAIM, Farid; BALAN, Tudor (C.A. Mota Soares et.al. (eds.), 2006-06)
This work aims to study the strain localization during the plastic deformation of sheets metals. This phenomenon is precursor for the fracture of drawing parts, so its prediction using advanced behavior models is an active ...