Delamination Propagation and Load Ratio Effects in DCB MD Woven Composite Specimens

Ido Simon*, Leslie Banks-Sills, Victor Fourman, Rami Eliasi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Double cantilever beam (DCB) specimens fabricated from 15 plies of a plain woven prepreg (G0814/913) arranged in a multidirectional (MD) layup were tested by means of constant amplitude fatigue cycles under displacement control. Four different displacement cyclic ratios were used, namely 0.1, 0.33, 0.5 and 0.75. The delamination propagation rate da/dN was calculated from the experimental data and plotted with respect to different functions of the mode I energy release rate G I . When one of those functions, denoted here as ΔK I was used, all of the data obtained for the different displacement ratios collapsed into one master curve.

Original languageEnglish
Pages (from-to)205-212
Number of pages8
JournalProcedia Structural Integrity
StatePublished - 2016


  • Carbon fibres
  • Delamination
  • Fatigue
  • Laminate
  • Textile composites


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