ANISOTROPIC POROUS PLASTICITY MODELS FOR DUCTILE FRACTURE - Sorbonne Université Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2021

ANISOTROPIC POROUS PLASTICITY MODELS FOR DUCTILE FRACTURE

Ahmed Benallal
Ayrton Ferreira
  • Fonction : Auteur
Sergio Proença
  • Fonction : Auteur

Résumé

General plastic models for ductile fracture are developed for voided materials with anisotropic matrix behaviour based on the concept of Isotropic Plastic Equivalent (IPE) space proposed by Karafillis and Boyce [1] and the general isotropic formulation provided in Benallal [2]. This allows all material symmetries to be included in a straightforward manner in the Gurson framework [3] to obtain anisotropic effective yield surfaces for porous materials. A numerical simulation is provided for illustration. MATRIX BEHVIOUR AND MICROSCOPIC DISSIPATION FUNCTION The Gurson model [3] for porous materials is very effective and widely used in a lot of practical applications. Other important applications, among which metal forming for instance, need the inclusion of the anisotropy of the matrix stemming from its manufacturing process.
Fichier principal
Vignette du fichier
Benallaletal-ICTAM-2020.pdf (377.66 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-03124730 , version 1 (29-01-2021)

Identifiants

  • HAL Id : hal-03124730 , version 1

Citer

Ahmed Benallal, Ayrton Ferreira, Sergio Proença. ANISOTROPIC POROUS PLASTICITY MODELS FOR DUCTILE FRACTURE. 2021. ⟨hal-03124730⟩
90 Consultations
57 Téléchargements

Partager

Gmail Facebook X LinkedIn More