Simulation of debonding in Al/epoxy T-peel joints using a potential-based cohesive zone model | Zendy

Marco Alfano | Zendy; Franco Furgiuele | Zendy; Gilles Lubineau | Zendy; Gláucio H. Paulino | Zendy

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Simulation of debonding in Al/epoxy T-peel joints using a potential-based cohesive zone model

Author(s) -

Marco Alfano,

Franco Furgiuele,

Gilles Lubineau,

Gláucio H. Paulino

Publication year - 2011

Publication title -

procedia engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.32

H-Index - 74

ISSN - 1877-7058

DOI - 10.1016/j.proeng.2011.04.293

Subject(s) - materials science , cohesive zone model , epoxy , fracture (geology) , displacement (psychology) , composite material , finite element method , work (physics) , adhesion , potential energy , structural engineering , engineering , mechanical engineering , psychology , physics , quantum mechanics , psychotherapist

In this work, a cohesive zone model of fracture is employed to study debonding in plastically deforming Al/epoxy T-peel joints. In order to model the adhesion between the bonded metal strips, the Park-Paulino-Roesler (PPR) potential based cohesive model (J Mech Phys Solids, 2009;57:891-908) is employed, and interface elements are implemented in a finite element com-mercial code. A study on the influence of the cohesive properties (i.e. cohesive strength, fracture energy, shape parameter and slope indicator) on the predicted peel-force versus displacement plots reveals that the numerical results are mostly sensitive to cohesive strength and fracture energy. In turn, these parameters are tuned until a match between experimental and simulated load displacement curves is achieved

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