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.
Fichier(s) constituant cette publication
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Communication avec acte;ABED-MERAIM, Farid; BALAN, Tudor (Groupe Français de Mécanique des Matériaux, 2008)
La mise en forme de tôles métalliques implique bien souvent de grandes déformations accompagnées de trajets de chargement complexes. Pour améliorer la prédiction via la simulation numérique de la forme finale des pièces, ...
-
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 ...
-
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 ...
-
Investigation of advanced strain-path dependent material models for sheet metal forming simulations Article dans une revue avec comité de lecture;BALAN, Tudor; ABED-MERAIM, Farid (Elsevier, 2006)
Sheet metal forming processes often involve complex loading sequences. To improve the prediction of some undesirable phenomena, such as springback, physical behavior models should be considered. This paper investigates ...
-
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 ...