An experimental investigation of the effect of shear-induced diffuse damage on transverse cracking in carbon-fiber reinforced laminates

Hedi Nouri, Gilles Lubineau, Daniel Traudes

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

When subjected to in-plane loading, carbon-fiber laminates experience diffuse damage and transverse cracking, two major mechanisms of degradation. Here, we investigate the effect of pre-existing diffuse damage on the evolution of transverse cracking. We shear-loaded carbon fiber-epoxy pre-preg samples at various load levels to generate controlled configurations of diffuse damage. We then transversely loaded these samples while monitoring the multiplication of cracking by X-ray radiography. We found that diffuse damage has a great effect on the transverse cracking process. We derived a modified effective transverse cracking toughness measure, which enabled a better definition of coupled transverse cracking/diffuse damage in advanced computational models for damage prediction. © 2013 Elsevier Ltd.
Original languageEnglish (US)
Pages (from-to)529-536
Number of pages8
JournalComposite Structures
Volume106
DOIs
StatePublished - Dec 2013

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ceramics and Composites

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