Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM): Recent submissions

Now showing items 1289-1295 of 1302

    • A torsion test for the study of the large deformation recovery of shape memory polymers 
      Article dans une revue avec comité de lecture
      DIANI, Julie; FREDY, Carole; GILORMINI, Pierre; MERCKEL, Yannick; ROUSSEAU, Ingrid; ccREGNIER, Gilles (Elsevier, 2011)
      A torsion device was designed and built for testing the shape fixity and shape recovery of shape memory polymers at large deformation. A simple thermal chamber was used to regulate the thermal environment during testing ...
    • Déplacement d'interfaces liquide - gaz sous l'effet d'un chauffage 
      Communication avec acte
      DULUC, Marie-Christine; ELAYYADI, Isam; LE QUÉRÉ, Patrick; ccDARU, Virginie (Société Française de Thermique / Congrès Français de Thermique, 29 mai - 1 juin 2007, Île des Embiez, 2007)
      On étudie numériquement une configuration diphasique monodimensionnelle assimilable à un actuateur thermique de petites dimensions dans laquelle deux lames d'air sont séparées entre elle par une lame d'eau liquide. On ...
    • Volume changes in a filled elastomer studied via digital image correlation 
      Article dans une revue avec comité de lecture
      DE CREVOISIER, Jordan; BESNARD, Gilles; MERCKEL, Yannick; ZHANG, Huan; CAILLARD, Julien; VION-LOISEL, Fabien; BERGHEZAN, Daniel; CRETON, Costantino; DIANI, Julie; BRIEU, Mathias; HILD, François; ROUX, Stéphane (Elsevier, 2012)
      Volumetric strains in a filled SBR specimen subjected to cyclic uniaxial tension with increasing extensions are studied. Digital image correlation is used to follow the kinematics of two orthogonal free faces. A volume ...
    • On modeling shape memory polymers as elastic two-phase composite materials 
      Article dans une revue avec comité de lecture
      GILORMINI, Pierre; DIANI, Julie (Elsevier, 2012)
      A model has been proposed recently, which describes the experimentally observed mechanical behavior of some shape memory polymers. It considers a purely thermoelastic behavior, without strain rate effects, and assumes ...
    • Predicting thermal shape recovery of crosslinked polymer networks from linear viscoelasticity 
      Article dans une revue avec comité de lecture
      DIANI, Julie; GILORMINI, Pierre; FREDY, Carole; ROUSSEAU, Ingrid (Elsevier, 2012)
      The viscoelastic behavior of an amorphous shape-memory polymer network and its dependence on time and temperature were measured by dynamic mechanical analysis. The resulting thermomechanical behavior was modeled and ...
    • Some Incipient Techniques For Improving Efficiency in Computational Mechanics 
      Communication avec acte
      ccAMMAR, Amine; ccCHINESTA SORIA, Francisco (SpringerLink, 2008)
      This contribution presents a review of different techniques available for alleviating simulation cost in computational mechanics. The first one is based on a separated representation of the unknown fields; the second one ...
    • Empirical Natural Closure Relation for Short Fiber Suspension Models 
      Article dans une revue avec comité de lecture
      ccPRULIERE, Etienne; ccAMMAR, Amine; ccCHINESTA SORIA, Francisco (Lavoisier, 2007)
      This work focuses on the resolution of the Fokker-Planck equation that governs the evolution of the fibers orientation distribution. To reduce the computing time, that equation is solved along some flow trajectories in ...