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

Now showing items 974-980 of 1302

    • Wave damping and evanescence: how to combine the spatial and temporal visions of the same problem? 1 
      Communication avec acte
      BALMES, Etienne; ccRÉBILLAT, Marc; ARLAUD, Elodie (Société Française d'Acoustique, 2016)
      It is proposed to analyze the forced response of periodic structures using a 2D Fourier transform using continuous time and discrete space. The simple example of compression waves is used to show that this response can be ...
    • Thermal response of DP600 dual-phase steel under ultrasonic fatigue loading 
      Article dans une revue avec comité de lecture
      TORABIAN, Noushin; ZIAEI-RAD, Saeed; DIRRENBERGER, Justin; ADAMSKI, Frédéric; ccRANC, Nicolas; ccFAVIER, Véronique (Elsevier, 2016)
      The present work employed in situ infrared thermography to investigate the thermal response and dissipative mechanisms of a dual-phase steel under ultrasonic tension-compression fatigue testing. A classical thermal response ...
    • Texture and Lattice Distortion Study of an Al-6061-T6 Alloy Produced by ECAP 
      Article dans une revue avec comité de lecture
      RUIZ, Carlos Reyes; FIGUEROA, Ignacio A.; CABRERA, José M.; ISMELI, Alfonso; GONZALEZ, Gonzalo; ccBRAHAM, Chedly (Nihon Kinzoku Gakkai, 2015)
      Equal channel angular pressing (ECAP) is a severe plastic deformation (SPD) technique that produces nanostructured materials. Based on a remarkable grain size reduction, this process has led to improve mechanical properties, ...
    • Validation of a reduced model of railway track allowing long 3D dynamic calculation of train-track interaction 
      Communication avec acte
      ARLAUD, Elodie; COSTA D'AGUIAR, Sofia; BALMES, Etienne (2014)
      In order to face challenges of increased traffic and speed on their infrastructures, railway companies need to develop numerical tools able to predict the dynamic behaviour of the track. Currently, two approaches are widely ...
    • Dynamic stress prediction in catenary wires for fatigue analysis 
      Communication avec acte
      BIANCHI, Jean-Philippe; BALMES, Etienne; NGUYEN-TAJAN, Mac Lan (2015)
      Fatigue cracks in the contact wire are a possible cause of fracture which can induce huge costs. Fatigue study is thus of a great interest but requires an accurate computations of stress distributions. OSCAR is a SNCF ...
    • Damping characterization of a high speed train catenary 
      Communication avec acte
      VO VAN, Olivier; BALMES, Etienne; LORANG, Xavier (2015)
      Catenary damping has long been a tuning parameter in pantograph-catenary dynamic interaction models. As the computed contact force is highly sensitive to the choice of damping model or coefficients, it became critical to ...
    • Proposition d’un modèle cinétique pour la dégradation thermique de la matrice PEEK 
      Article dans une revue avec comité de lecture
      COURVOISIER, Emilie; BICABA, Yoann; ccCOLIN, Xavier (EDP Sciences, 2016)
      La dégradation thermique du poly(éther éther cétone) (PEEK) a été étudiée dans l’air à l’état solide (caoutchoutique) typiquement entre 523 et 593 K, i.e. dans un domaine de températures encore inexploré. Les modifications ...