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

Now showing items 155-161 of 1272

    • Fast numerical estimation of residual stresses induced by laser shock peening 
      Article dans une revue avec comité de lecture
      ccDERRIEN, Katell; BERTHE, Laurent; ccLAPOSTOLLE, Lucas; ccCASTELNAU, Olivier; MORIN, Léo (Elsevier, 2022-11)
      The aim of this paper is to develop a model allowing a fast first approximate estimation of the elastic–plastic stress wave propagation caused by a laser impact and the resulting residual stress field. We start by modeling ...
    • Physical mechanisms of conduction-to-keyhole transition in laser welding and additive manufacturing processes 
      Article dans une revue avec comité de lecture
      MAYI, Yaasin A.; ccPEYRE, Patrice; BELLET, Michel; FABBRO, Remy; ccDAL, Morgan (Elsevier, 2022-10)
      Thermo-hydrodynamic phenomena which take place during laser welding or additive manufacturing processes as laser powder bed fusion, have been investigated for years, but recent advances in X-ray images and in situ analysis ...
    • Data Completion, Model Correction and Enrichment Based on Sparse Identification and Data Assimilation 
      Article dans une revue avec comité de lecture
      DI LORENZO, Daniele; CHAMPANEY, Victor; GERMOSO, Claudia; ccCUETO, Elias; ccCHINESTA SORIA, Francisco (MDPI AG, 2022-07)
      Many models assumed to be able to predict the response of structural systems fail to efficiently accomplish that purpose because of two main reasons. First, some structures in operation undergo localized damage that degrades ...
    • New methodology of dynamical material response of dissimilar FSWed Al alloy joint under high strain rate laser shock loading 
      Article dans une revue avec comité de lecture
      AYAD, Mohammad; LAPOSTOLLE, Lucas; RONDEPIERRE, Alexandre; BRAS, Corentin Le; ÜNALDI, Selen; DONIK, Črtomir; KLOBČAR, Damjan; BERTHE, Laurent; TRDAN, Uroš (Elsevier, 2022-08)
      This paper presents an innovative methodology of material characterization under high strain rate (order of 107s��1) laser shock loading coupled with microstructural and mechanical material features. To that scope, ...
    • Gas barrier properties of polylactide/cellulose nanocrystals nanocomposites 
      Article dans une revue avec comité de lecture
      FARAJ, Hajar; FOLLAIN, Nadège; SOLLOGOUB, Cyrille; ALMEIDA, Giana; CHAPPEY, Corinne; MARAIS, Stéphane; TENCÉ-GIRAULT, Sylvie; GOUANVÉ, Fabrice; ESPUCHE, Eliane; DOMENEK, Sandra (Elsevier, 2022-07-01)
      The development of polylactide (PLA)/cellulose nanocrystals (CNC) nanocomposites in the aim to increase gas barrier properties has been widely studied, but gave rise to conflicting results. To better understand the underlying ...
    • Dewetting Dynamics of Sheared Thin Polymer Films: An Experimental Study 
      Article dans une revue avec comité de lecture
      DMOCHOWSKA, Anna; PEIXINHO, Jorge; SOLLOGOUB, Cyrille; MIQUELARD-GARNIER, Guillaume (American Chemical Society (ACS), 2022-04-01)
      An experimental investigation is reported on the effect of shear on the bursting of molten ultrathin polymer films embedded in an immiscible matrix. By use of an optical microscope coupled with a shearing hot stage, the ...
    • A model of porous plastic single crystals based on fractal slip lines distribution 
      Article dans une revue avec comité de lecture
      PAUX, Joseph; MORIN, Léo; BRENNER, Renald (Elsevier, 2022-10)
      The ductile failure of crystalline materials is strongly linked to the growth of intragranular voids. The estimation of the overall yield criterion thus requires to take into account the anisotropic plastic behavior of the ...