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Finite element prediction of sheet forming defects using elastic-plastic, damage and localization models

Article dans une revue avec comité de lecture
Author
HADDAG, Badis
ccABED-MERAIM, Farid 
ccBALAN, Tudor
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]

URI
http://hdl.handle.net/10985/10210
DOI
10.1063/1.2740816
Date
2007
Journal
American Institute of Physics Conf. Proc

Abstract

In this work, an advanced anisotropic elastic-plasticity model is combined with a damage model and a strain localization criterion in the aim to describe accurately the mechanical behavior of sheet metals. Large strain, fully three-dimensional, implicit time integration algorithms are developed for this model and implemented in the finite element code Abaqus. The resulting code is used to predict the strain localization limits as well as the springback after forming of sheet steels. The impact of strain-path dependent hardening models on the limit strains and on the amount of springback is addressed.

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