Cohesive/Adhesive failure interaction in ductile adhesive joints Part II: Quasi-static and fatigue analysis of double lap-joint specimens subjected to through-thickness compressive loading

Jonathan P Belnoue, Stefanos Giannis, Matthew Dawson, Stephen R Hallett

Research output: Contribution to journalArticle (Academic Journal)

14 Citations (Scopus)
442 Downloads (Pure)

Abstract

This paper proposes a new methodology for the finite element (FE) modelling of failure in adhesively bonded joints. Cohesive and adhesive failure are treated separately which allows accurate failure predictions for adhesive joints of different thicknesses using a single set of material parameters. In a companion paper (part I), a new smeared-crack model for adhesive joint cohesive failure was proposed and validated. The present contribution gives an in depth investigation into the interaction among plasticity, cohesive failure and adhesive failure, with application to structural joints. Quasi-static FE analyses of double lap-joint specimens with different thicknesses and under different levels of hydrostatic pressure were performed and compared to experimental results. In all the cases studied, the numerical analysis correctly predicts the driving mechanisms and the specimens’ final failure. Accurate fatigue life predictions are made with the addition of a Paris based damage law to the interface elements used to model the adhesive failure.
Original languageEnglish
Pages (from-to)369-378
Number of pages10
JournalInternational Journal of Adhesion and Adhesives
Volume68
Early online date19 Mar 2016
DOIs
Publication statusPublished - 1 Jul 2016

Keywords

  • Ductile adhesive
  • Cohesive zone modelling
  • Adhesive failure
  • Cohesive failure
  • Fatigue life prediction

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