Cohesive/Adhesive failure interaction in ductile adhesive joints Part I: A smeared-crack model for cohesive failure

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Abstract

This paper proposes a new methodology for the finite element (FE) modelling of failure in adhesively bonded joint. Unlike current methods, cohesive and adhesive failure are treated separately. Initial results show the method’s ability to give accurate prediction of failure of adhesive joints subjected to thickness-induced constraint and complex multi-axial loading using a single set of material parameters. The present paper (part I), focuses on the development of a smeared-crack model for cohesive failure. Model verification and validation are performed comparing the model predictions with experimental data from 3 point bending End Notched Flexure (3ENF) and Double Cantilever Beam (DCB) fracture tests conducted on adhesively bonded composite panels of different adhesive thicknesses.
Original languageEnglish
Pages (from-to)359-368
Number of pages10
JournalInternational Journal of Adhesion and Adhesives
Volume68
Early online date19 Mar 2016
DOIs
Publication statusPublished - 1 Jul 2016

Keywords

  • Smeared-Crack Modelling
  • Ductile Adhesive
  • Thickness Effect
  • Cohesive Failure

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