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Finite element simulation of sheet metal forming processes using non-quadratic anisotropic plasticity models and solid-Shell finite elements

Article dans une revue avec comité de lecture
Auteur
YOUNAS, Nabeel
ccCHALAL, Hocine
243747 Labex DAMAS
178323 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux [LEM3]
ccABED-MERAIM, Farid

URI
http://hdl.handle.net/10985/20268
DOI
10.1016/j.promfg.2020.04.302
Date
2020
Journal
Procedia Manufacturing

Résumé

During the last decades, a family of assumed-strain solid-shell finite elements has been developed with enriched benefits of solid and shell finite elements together with special treatments to avoid locking phenomena. These elements have been shown to be efficient in numerical simulation of thin 3D structures with various constitutive models. The current contribution consists in the combination of the developed linear and quadratic solid-shell elements with complex anisotropic plasticity models for aluminum alloys. Conventional quadratic anisotropic yield functions are associated with less accuracy in the simulation of forming processes with metallic materials involving strong anisotropy. For these materials, the plastic anisotropy can be modeled more accurately using advanced non-quadratic yield functions, such as the anisotropic yield criteria proposed by Barlat for aluminum alloys. In this work, various quadratic and non-quadratic anisotropic yield functions are combined with a linear eight-node hexahedral solid-shell element and a linear six-node prismatic solid-shell element, and their quadratic counterparts. The resulting solid-shell elements are implemented into the ABAQUS software for the simulation of benchmark deep drawing process of a cylindrical cup. The predicted results are assessed and compared to experimental ones taken from the literature. Compared to the use of conventional quadratic anisotropic yield functions, the results given by the combination of the developed solid-shell elements with non-quadratic anisotropic yield functions show good agreement with experiments.

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Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Evaluation of a new solid-shell finite element on the simulation of sheet metal forming processes 
    Communication avec acte
    ccCHALAL, Hocine; SALAHOUELHADJ, Abdellah; ccABED-MERAIM, Farid (Wiley, 2012)
    In this paper, the performance of the solid-shell finite element SHB8PS is assessed in the context of sheet metal forming simulation using anisotropic elastic-plastic behavior models. This finite element technology has ...
  • Vibration modeling of sandwich structures using solid-shell finite elements 
    Communication avec acte
    KPEKY, Fessal; BOUDAOUD, Hakim; ccCHALAL, Hocine; ccABED-MERAIM, Farid; DAYA, El Mostafa (2014)
    The aim of this work is to propose a new finite element modeling for vibration of sandwich structures with soft core. Indeed, several approaches have been adopted in the literature to accurately model these types of ...
  • Dynamic response of viscoelastic multilayers structures using solid-shell finite elements 
    Conférence invitée
    KPEKY, Fessal; BOUDAOUD, Hakim; ccCHALAL, Hocine; ccABED-MERAIM, Farid; DAYA, El Mostafa (2014)
    Because vibrations often lead to noise and system dysfunction, they are therefore undesirable in many situations. One of the proposed ways developed in the literature to reduce vibrations is the use of sandwich structures ...
  • Investigation of ductility limits based on bifurcation theory coupled with continuum damage mechanics 
    Article dans une revue avec comité de lecture
    BOUKTIR, Yasser; ccCHALAL, Hocine; HADDAD, Moussa; ccABED-MERAIM, Farid (Elsevier, 2016)
    The ductility limits of an St14 steel are investigated using an elastic‒plastic‒damage model and bifurcation theory. An associative J2-flow theory of plasticity is coupled with damage within the framework of continuum ...
  • Prédiction de la localisation par une approche d’endommagement micromécanique couplée à une analyse de bifurcation : application à la mise en forme des tôles 
    Communication avec acte
    MANSOURI, Lotfi; ccCHALAL, Hocine; ccABED-MERAIM, Farid; ccBALAN, Tudor (Association Française de Mécanique, 2011)
    Le phénomène de localisation des déformations plastiques, qui apparait lors d’opérations de mise en forme des tôles, représente l’une des principales causes de rebut des pièces produites dans l’industrie. Plusieurs critères ...

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