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

Marco Alfano, Franco Furgiuele, Gilles Lubineau, Glaucio H. Paulino

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

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 commercial 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.

Original languageEnglish (US)
Pages (from-to)1760-1765
Number of pages6
JournalProcedia Engineering
Volume10
DOIs
StatePublished - 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Engineering

Keywords

  • Bond toughness
  • Cohesive zone model
  • Fracture
  • T-peel joint

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