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Analyse du décollement d'un film élastique en régime dynamique: exploration analytique et numérique

Abstract : The paper deals with the one dimension dynamic problem of a thin stretched elastic film initially completely bonded to a rigid plane, and submitted on one edge, to an increasing transverse small deflection of constant rate, and suddenly stopping. The film peeling activates a surface energy (a Griffith or a Dugdale-Barenblatt Fracture criterion is considered here). The problem is completely solved in an analytical way for the Griffith law and the following results are achieved: during the loading increase, the peeling yields with a constant rate and goes on after the deflection is maintained constant. Then, velocities and strains jumps appear and propagate to the point contact and stop the peeling and solution evolution. The problem is also approached with a Dugdale criterion and numerically treated with cohesive zone whose stress-opening displacement is governed by a Barenblatt model. Damage and Fracture fronts propagation are then discerned (total or partial peeling).
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Contributor : Mathias Legrand <>
Submitted on : Tuesday, June 12, 2018 - 3:53:29 AM
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  • HAL Id : hal-01813001, version 1


M. Charlotte, Gilles Debruyne, Pierre-Emmanuel Dumouchel, Jean-Jacques Marigo. Analyse du décollement d'un film élastique en régime dynamique: exploration analytique et numérique. 7e colloque national en calcul des structures, CSMA, May 2005, Giens, France. ⟨hal-01813001⟩



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