On mesh size to cohesive zone parameters relationships - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2011

On mesh size to cohesive zone parameters relationships

Résumé

A micromechanical model is proposed for a collection of cohesive zone models embedded between each mesh of a nite element-type discretization (cohesive-volumetric approach). The corresponding model concerns isotropic and elastic bulk behaviours and can be applied whatever the cohesive zone model, the mesh type and the triaxiality loading ratio. The overall elastic behaviour is derived using a variational approach Hashin and Shtrikman (1963); Suquet (1995) and is obtained as function of local parameters, bulk properties of relevant material and mesh density. For an isotropic discretization, a bound is obtained on the cohesive sti nesses: the additional compliance inherent to intrinsic cohesize zone models is bounded by lower value. Others criteria on cohesive parameters (critical opening, cohesive energy, peak stress, etc.) can be obtained trough inverse analysis.
Fichier principal
Vignette du fichier
On_mesh-size_cohesive_zone_Blal_al.pdf (810.06 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00800456 , version 1 (13-03-2013)

Identifiants

  • HAL Id : hal-00800456 , version 1

Citer

Nawfal Blal, Loïc Daridon, Yann Monerie, Stéphane Pagano. On mesh size to cohesive zone parameters relationships. ACOMEN 2011, Nov 2011, Liège, Belgium. pp.Cd-Rom. ⟨hal-00800456⟩
140 Consultations
935 Téléchargements

Partager

Gmail Facebook X LinkedIn More