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dc.contributor.author
 hal.structure.identifier
HADDAG, Badis
1104 Laboratoire de physique et mécanique des matériaux [LPMM]
dc.contributor.authorABED-MERAIM, Farid
dc.contributor.author
 hal.structure.identifier
BALAN, Tudor
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
dc.date.accessioned2015
dc.date.available2015
dc.date.issued2008
dc.date.submitted2015
dc.identifier.issn0749-6419
dc.identifier.urihttp://hdl.handle.net/10985/10212
dc.description.abstractSheet 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 are often required. The main objective of this paper is to analyze the strain localization phenomenon during the plastic deformation of sheet metals in the context of such advanced constitutive models. Most often, an accurate prediction of localization requires damage to be considered in the finite element simulation. For this purpose, an advanced, anisotropic elastic-plastic model, formulated within the large strain framework and taking strain-path changes into account, has been coupled with an isotropic damage model. This coupling is carried out within the framework of continuum damage mechanics. In order to detect the strain localization during sheet metal forming, Rice’s localization criterion has been considered, thus predicting the limit strains at the occurrence of shear bands as well as their orientation. The coupled elastic-plastic-damage model has been implemented in Abaqus/Implicit. The application of the model to the prediction of Forming Limit Diagrams (FLDs) provided results that are consistent with the literature and emphasized the impact of the hardening model on the strain-path dependency of the FLD. The fully threedimensional formulation adopted in the numerical development allowed for some new results – e.g. the out-of-plane orientation of the normal to the localization band, as well as more realistic values for its in-plane orientation.
dc.language.isoen
dc.publisherElsevier
dc.rightsPost-print
dc.subjectStrain Localization, Anisotropic Elastic-plasticity, Large Strain, Isotropic- Kinematic Hardening, Continuum Damage Theory, Shear Band, Finite Element Simulation
dc.titleStrain localization analysis using a large deformation anisotropic elastic-plastic model coupled with damage
dc.identifier.doi10.1016/j.ijplas.2008.12.013
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Metz
dc.subject.halSciences de l'ingénieur: Matériaux
dc.subject.halSciences de l'ingénieur: Mécanique
ensam.audienceInternationale
ensam.page1970-1996
ensam.journalInternational Journal of Plasticity
hal.identifierhal-01206515
hal.version1
hal.statusaccept


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