Pseudo-ductility and reduced notch sensitivity in multi-directional all-carbon/epoxy thin-ply hybrid composites

Gergely Czél*, Tamas Rev, Meisam Jalalvand, Mohamad Fotouhi, Marco L. Longana, Oliver J. Nixon-Pearson, Michael R. Wisnom

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

28 Citations (Scopus)
305 Downloads (Pure)

Abstract

Un-notched and notched tensile response and damage accumulation of quasi-isotropic carbon/epoxy hybrid laminates made of ultra-high modulus and intermediate modulus carbon fibre/epoxy thin-ply prepregs were studied. It was confirmed that the ply fragmentation demonstrated previously in unidirectional hybrids as a successful pseudo-ductility mechanism can be transferred to multi-directional laminates. Furthermore, reduced notch sensitivity was demonstrated in quasi-isotropic specimens for both open holes and sharp notches as a result of local ply fragmentation around the notch.

Original languageEnglish
Pages (from-to)151-164
Number of pages14
JournalComposites Part A: Applied Science and Manufacturing
Volume104
Early online date14 Nov 2017
DOIs
Publication statusPublished - 1 Jan 2018

Keywords

  • B. Delamination
  • B. Fragmentation
  • C. Damage mechanics
  • D. Mechanical testing

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