%0 Journal Article
%T Self-similar crack propagation along a viscoelastic interface in a double-cantilever beam test
%+ Institut de Recherche Dupuy de Lôme (IRDL)
%A Márquez Costa, J.
%A Jumel, J.
%A Badulescu, C.
%A Stamoulis, G.
%< avec comité de lecture
%@ 1385-2000
%J Mechanics of Time-Dependent Materials
%I Society for Experimental Mechanics
%8 2022-06
%D 2022
%R 10.1007/s11043-022-09559-8
%K DCB
%K Eulerian approach
%K Fracture energy
%K Self-similar
%K Viscoelastic interface
%Z Engineering Sciences [physics]/Mechanics [physics.med-ph]Journal articles
%X Double-Cantilever Beam (DCB) testing is a common protocol to evaluate bonded interface toughness. The data-analysis procedures are initially based on the classical Linear Elastic Fracture Mechanics (LEFM) and have been extended to deal with plastic behavior. Nevertheless, those analyses are not suitable when time-dependent behavior is involved in the crack propagation process. In this paper, an analysis of crack propagation along a viscoelastic interface during a DCB test is conducted, assuming a Standard Linear Solid (SLS) model for the adhesive. During the self-similar crack propagation regime, a steady-state stress–strain distribution is achieved ahead of the crack tip and a Eulerian description is used. A finite-difference scheme is implemented to solve the set of differential equations from which stress–strain evolutions along the bondline are determined as the specimen deforms. The crack propagation response under stationary loading conditions is then simulated and the energy-based failure criteria are evaluated comparing both local and global estimations of the Strain-Energy Release Rate (SERR).
%G English
%L hal-03708321
%U https://hal-ensta-bretagne.archives-ouvertes.fr/hal-03708321
%~ UNIV-BREST
%~ ENSTA-BRETAGNE
%~ CNRS
%~ UNIV-UBS
%~ UBS
%~ ENIB
%~ IRDL
%~ ENSTA-BRETAGNE-MECA
%~ ENSTA-BRETAGNE-PTR2-IRDL