Selective ply-level hybridisation for improved notched response of composite laminates

C. Furtado, A. Arteiro, G. Catalanotti, J. Xavier, P. P. Camanho*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)
197 Downloads (Pure)

Abstract

This work presents an experimental study on the effect of ply-level hybridisation on the tensile unnotched and notched response of composite laminates. In a first assessment, notched tests were performed on laminates with nominal ply thicknesses between 0.03 mm and 0.30 mm. From the understanding of the effect of ply thickness on the damage mechanisms that govern the notched response of laminates, the concept of ply-level hybridisation is introduced, which consists in combining plies of different grades. A uniform combination of thin and conventional plies resulted in a hybrid laminate with intermediate notched response. Selective hybridisation, where thin off-axis plies are combined with thicker 0° plies, resulted in a globally enhanced notched behaviour without compromising the unnotched and fatigue responses. This work clearly shows how ply-level hybridisation, when designed to trigger specific damage mechanisms, can be used to improve the notched response of composite laminates.

Original languageEnglish
Pages (from-to)1-14
Number of pages14
JournalComposite Structures
Volume145
Early online date27 Feb 2016
DOIs
Publication statusPublished - 10 Jun 2016
Externally publishedYes

Keywords

  • Hybrid
  • Mechanical properties
  • Notched response
  • Thin-ply laminates

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Ceramics and Composites

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