Transition from a nonlocal damage model to a cohesive zone model within the framework of quasi-brittle failure
type: Dataset
description: The present work deals with the study and the improvement of regularized (non local) damage models. It aims to study the transition from a continuous damage field distributed on a structure to a discontinuous macroscopic failure model.First, an analytical one-dimensional study is carried out (on a bar submitted to tensile loading) in order to identify a set of interface laws that enable to switch from an inhomogeneous solution obtained with a continuous gradient damage model to a cohesive zone model. This continuous / discontinuous transition is constructed so that the energetic equivalence between both models remains ensured whatever the damage level reached when switching.This strategy is then extended to the bi-dimensional (and tri-dimensional) case of rectilinear (and plane) crack propagation under mode I loading conditions, in a finite element framework. An explicit approach based on a critical damage criterion that allows coupling both continuous and discontinuous approaches is then proposed. Finally, results of several simulations led with this coupled approach are presented.
landing page: https://pastel.hal.science/pastel-00817940
identifier: NNT: 2012ENMP0064
keyword: cohesive-zone-model
keyword: endommagement-non-local
keyword: energetic-equivalence
keyword: equivalence-energetique
keyword: finite-element-method
keyword: infoeu-reposemanticsdoctoralthesis
keyword: methode-des-elements-finis
keyword: modele-de-zone-cohesive
keyword: nonlocal-damage-model
keyword: spiotherengineering-sciences-physicsother
keyword: theses
issued: 2026-05-11T07:44:59.931006
modified: 2026-05-11T07:44:59.931011
language: fr
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Transition from a nonlocal damage model to a cohesive zone model within the framework of quasi-brittle failure
type: Distribution
format: HTML
access URL: https://pastel.hal.science/pastel-00817940
issued: 2026-05-11T07:44:59.955330
modified: 2026-05-11T07:44:59.905479