Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3): Recent submissions

Now showing items 365-371 of 538

    • Dislocation-based model for the prediction of the behavior of b.c.c. materials – grain size and strain path effects 
      Article dans une revue avec comité de lecture
      CARVALHO RESENDE, Tales; BOUVIER, Salima; ccABED-MERAIM, Farid; ccBALAN, Tudor; SABLIN, Simon-Serge (Elsevier, 2013)
      Sheet metal forming processes involve multi-axial strain paths. For the numerical simulation of such processes, an appropriate constitutive model that properly describes material behavior at large strain is required. For ...
    • Strain localization analysis using a multiscale model 
      Communication sans acte
      FRANZ, Gérald; ccABED-MERAIM, Farid; BEN ZINEB, Tarak; LEMOINE, Xavier; BERVEILLER, Marcel (Elsevier, 2007)
      The development of a relevant constitutive model adapted to sheet metal forming simulations requires an accurate description of the most important sources of anisotropy, i.e. the slip processes, the intragranular substructure ...
    • New quadratic solid-shell elements and their evaluation on popular benchmark problems 
      Communication sans acte
      ccABED-MERAIM, Farid; TRINH, Vuong-Dieu; COMBESCURE, Alain (Pavel Solin, Pavel Karban, Jaroslav Kruis, 2012)
      In recent years, considerable effort has been devoted to the development of 3D finite elements able to model thin structures (Cho et al., 1998; Sze and Yao, 2000; Abed-Meraim and Combescure, 2002; Vu-Quoc and Tan, 2003; ...
    • Numerical Investigation of the Limit Strains in Sheet Forming Involving Bending 
      Communication avec acte
      ccBALAN, Tudor; ccABED-MERAIM, Farid (Hanrimwon Publishing/ Korean Society for Technology of Plasticity, 2008)
      In this work, the finite element method is used to simulate a typical FLD test over tools of different radii. Parameters like the mesh density, element type, numerical determination of the onset of strain localization, ...
    • A finite-element based numerical tool for Ni47Ti44Nb9 SMA structures design application to tightening rings 
      Article dans une revue avec comité de lecture
      PIOTROWSKI, Boris; BEN ZINEB, Tarak; EBERHARDT, André; PATOOR, Etienne (SAGE Publications, 2012)
      This paper deals with the design of Ni47Ti44Nb9 Shape Memory Alloy (SMA) tightening components. The tightening of an SMA ring on an elastic pipe is analyzed using the finite element code ABAQUS® and a UMAT subroutine ...
    • Orthotropic strain rate potentials using multiple linear transformations 
      Article dans une revue avec comité de lecture
      RABAHALLAH, Meziane; BARLAT, Frédéric; ccBALAN, Tudor (Elsevier, 2009)
      This paper reviews a class of anisotropic plastic strain-rate potentials, based on linear transformations of the plastic strain-rate tensor. A new formulation is proposed, which includes former models as particular cases ...
    • Analyse de stabilité des évolutions quasi-statiques de systèmes standard dissipatifs 
      Communication avec acte
      ccABED-MERAIM, Farid; NGUYEN, Quoc Son (Société Marocaine des Sciences Mécaniques, 2007)
      Cette étude est consacrée à la stabilité de la réponse quasi-statique de systèmes standard dissipatifs (visco-élastiques, visco-plastiques ou élasto-plastiques). Dans le cas de solides visqueux (visco-élastiques ou ...