Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA): Recent submissions

Now showing items 519-525 of 551

    • High cycle multiaxial fatigue crack initiation : experimental observations and microstructure simulations 
      Communication avec acte
      ccAGBESSI, Komlan; ccSAINTIER, Nicolas; ccPALIN-LUC, Thierry (2013)
      This study provides an analysis of high cycle multiaxial fatigue crack initiation modes based on SEM observations.The statistical study of crack initiation preferential sites shows that grains with multiple slip have a ...
    • Comparison between defects and micro-notches in multiaxial fatigue – The size effect and the gradient effect 
      Article dans une revue avec comité de lecture
      MOREL, Anne; NADOT, Yves; ccMOREL, Franck (Elsevier, 2009)
      This paper attempts to improve the understanding of the multiaxial high cycle fatigue response of micro sized stress concentrations or notches of different geometries. The investigation is composed of an experimental part ...
    • Development of a microscopic damage model for low stress triaxiality 
      Article dans une revue avec comité de lecture
      ACHOURI, Mohamed; ccGERMAIN, Guénaël; DAL SANTO, Philippe; BOUDE, Serge; LEBRUN, Jean-Lou; SAIDANE, Delphine (Trans Tech Publications, 2011)
      This work deals a contribution to ductile damage of High-Strength Low-Alloy (HSLA) steel steels under low stress triaxiality. This work is based on micrographics observations and in situ shear tests to examine the evolution ...
    • LSE method using the CHSS model 
      Article dans une revue avec comité de lecture
      LANTIERI, Pascal; GUERIN, Fabrice; VOICULESCU, Sorin (Elsevier, 2009)
      Testing the reliability at a nominal stress level may lead to extensive test time. Estimations of reliability parameters can be obtained faster thanks to step-stress accelerated life tests (ALT). Usually, a transfer ...
    • A new approach to model the fatigue anisotropy due to non-metallic inclusions in forged steels 
      Article dans une revue avec comité de lecture
      BELLETT, Daniel; MOREL, Anne; ccMOREL, Franck; ccPESSARD, Etienne (Elsevier, 2012)
      The objective of this work is to propose an anisotropic fatigue criterion for the sizing of industrial forged components. The results from different experimental campaigns using three different rolled steels are first ...
    • Implementation and validation of a Gurson damage model modified for shear loading: effect of void growth rate and mesh size on the predicted behavior 
      Communication avec acte
      ACHOURI, Mohamed; ccGERMAIN, Guénaël; DAL SANTO, Philippe; SAIDANE, Delphine (Scientific.Net, 2012)
      The optimization of automotive security components requires good knowledge of the material state after fabrication, particularly with respect to damage that may have been done to the material by the manufacturing process. ...
    • Modélisation des processus d’innovation en PME 
      Communication sans acte
      CHRISTOFOL, Hervé; CORSI, Patrick; CRUBLEAU, Pascal; DELAMARRE, Anthony; SAMIER, Henri (Congrès International de Génie Industriel, 2011)
      Abstract – Innovation is a complex process more than one way. The organization of the preliminary phases of innovation projects mobilizing interdisciplinary teams that implement a variety of methods. The authors' research ...