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

Now showing items 288-294 of 499

    • Numerical simulation of the effect of adiabatic temperature increase in martensitic transformation of austenitic steels 
      Conférence invitée
      ZAERA, Ramon; CASADO, Alvaro; RODRIGUEZ-MARTINEZ, José Antonio; RUSINEK, Alexis; FERNANDEZ-SAEZ, José; ccPESCI, Raphaël (2011)
      This work presents a constitutive model for metastable austenitic steels exhibiting Strain Induced Martensitic Transformation (SIMT). Based on the description of the kinetics of phase transformation proposed by Olson and ...
    • On the elasto-viscoplastic behavior of the Ti5553 alloy 
      Article dans une revue avec comité de lecture
      ccBEN BETTAIEB, Mohamed; VAN HOOF, Thibaut; PARDOEN, Thomas; DUFOUR, Philippe; LENAIN, Astrid; JACQUES, Pascal J.; HABRAKEN, Anne-Marie (Elsevier, 2014)
      The elastoviscoplastic behavior of the Ti5553 alloy is characterized and compared to the classical Ti–6Al–4V alloy. The true stress–strain curves are determined based on tensile tests performed under different strain rates ...
    • Modeling of coupled phase transformation and reorientation in shape memory alloys under non-proportional thermomechanical loading 
      Article dans une revue avec comité de lecture
      CHATZIATHANASIOU, Dimitris; CHEMISKY, Yves; CHATZIGEORGIOU, George; ccMERAGHNI, Fodil (Elsevier, 2016)
      In the present study, a new 3D thermodynamic coupled model is proposed for SMAs. The behavior of SMA structures is described through several strain mechanisms, each associated with its proper internal variables. This model ...
    • Effective behavior of thermo-elastic tubes with wavy layers 
      Article dans une revue avec comité de lecture
      TSALIS, Dimitrios; CHATZIGEORGIOU, George; CHARALAMBAKIS, Nicolas (Elsevier, 2016)
      In the present article, the homogenization of a composite star-shaped tube with numerous thin, periodic, elastic wavy layers, is presented. The composite exhibits a multiscale periodicity allowing for a multistep asymptotic ...
    • Interfacial damage and load transfermodeling in short fiber reinforced composites 
      Conférence invitée
      BONNAY, Kevin; DESPRINGRE, Nicolas; CHEMISKY, Yves; ccMERAGHNI, Fodil (2016)
      Due to the compromise between their thermomechanical properties and low density, Short Fiber Reinforced Polyamides (SFRP) present a good alternative to metals for automotive structural components. The microstructure of ...
    • Combined effect of damage and plastic anisotropy on the ductility limit of thin metal sheets 
      Article dans une revue avec comité de lecture
      MSOLLI, Sabeur; ccBEN BETTAIEB, Mohamed; ccABED-MERAIM, Farid  (ESIS - Elsevier, 2016)
      It is well known that both damage and plastic anisotropy strongly affect the ductility limit of thin metal sheets. Due to the manufacturing processes, initial defects, such as inclusions and voids, are ...
    • Cyclic loading effects on NITI alloys under biaxial conditions 
      Conférence invitée
      CHATZIATHANASIOU, Dimitris; BOURGEOIS, Nadine; CHEMISKY, Yves; ccMERAGHNI, Fodil (2016)
      In this work, the influence of the direction and the history of thermomechanical loading of NiTi shape memory alloys on the overall material behavior is experimentally investigated. In the first part, cyclic biaxial ...