Notched response of non-crimp fabric thin-ply laminates: Analysis methods

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)
323 Downloads (Pure)

Abstract

Analysis methods to predict the open-hole tensile and compressive response of thin-ply non-crimp fabric laminates are investigated in this paper. The point- and average-stress models and the Finite Fracture Mechanics model are used. It is shown that all models predict with reasonable accuracy the observed size effects in both tension and compression. The Finite Fracture Mechanics model, which requires two material properties (the unnotched strength and the fracture toughness) and does not need calibration from a baseline specimen, is used to predict the notched response of thin-ply non-crimp fabric laminates and of typical aerospace grade laminates based on unidirectional pre-impregnated plies. No substantial differences in notch sensitivity and inherent material/geometry brittleness is predicted.

Original languageEnglish
Pages (from-to)165-171
Number of pages7
JournalComposites Science and Technology
Volume88
Early online date18 Sep 2013
DOIs
Publication statusPublished - 14 Nov 2013
Externally publishedYes

Keywords

  • A. Laminate
  • B. Fracture
  • C. Stress concentrations

ASJC Scopus subject areas

  • Engineering(all)
  • Ceramics and Composites

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