Analytical prediction model for non-symmetric fatigue crack growth in Fibre Metal Laminates

Wandong Wang*, Calvin Rans, Rinze Benedictus

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

19 Citations (Scopus)
54 Downloads (Pure)

Abstract

This paper proposes an analytical model for predicting the non-symmetric crack growth and accompanying delamination growth in FMLs. The general approach of this model applies Linear Elastic Fracture Mechanics, the principle of superposition, and displacement compatibility based on the understanding of deformation behaviour in eccentrically cracked metal panels. The non-symmetric crack growth behaviour of two crack tips and accompanying asymmetric load transfer from the eccentrically cracked metal layers to the intact bridging fibres are successfully predicted with the model. The predicted crack growth rates and delamination evolution are compared to test data, good correlation is observed.

Original languageEnglish
Pages (from-to)546-556
Number of pages11
JournalInternational Journal of Fatigue
Volume103
DOIs
Publication statusPublished - 1 Oct 2017

Keywords

  • Crack opening displacement
  • Fibre metal laminates
  • Non-symmetric crack
  • Stress intensity factor

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