EFFET DU CHARGEMENT CYCLIQUE MULTIAXIAL SUR LE PHENOMENE DE ROCHET DE L’ACIER INOXYDABLE AUSTENITIQUE 304L

Auteurs-es

  • Fatiha BOUSSALIH Université des Frères Mentouri Constantine 1
  • Salim MEZIANI Université des Frères Mentouri Constantine 1
  • Atman FOUATHIA Université des Frères Mentouri Constantine 1

Mots-clés :

Chargement cyclique croisé, Elasto-plastique, Sur-écrouissage, Rochet, Chaboche

Résumé

Ce travail traite de l’écrouissage et l’analyse du comportement macroscopique phénoménologique non linéaire de l’acier inoxydable austénitique 304L, soumis  à  un chargement  mécanique cyclique multiaxial  de traction/ torsion à  déformation et à contrainte imposées. On évoquera ainsi la manifestation de deux phénomènes : sur-écrouissage et  Rochet. Un essai comparatif entre  Rochet 1D et 2D ayant la même contrainte moyenne a été discuté.

 Le comportement du matériau sous chargement cyclique est modélisé en utilisant le modèle de  Chaboche..

Bibliographies de l'auteur-e

Fatiha BOUSSALIH, Université des Frères Mentouri Constantine 1

Laboratoire de Mécanique

Salim MEZIANI, Université des Frères Mentouri Constantine 1

Laboratoire de Mécanique

Atman FOUATHIA, Université des Frères Mentouri Constantine 1

Ista Mécanique

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Publié-e

2018-06-30

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