Pseudo-Ductile Behaviour in Fibre Reinforced Thermoplastic Angle-ply Composites

Thomas Pozegic, Mohammad Fotouhi, Xun Wu, Jamie W Hartley, Michael R Wisnom, Ian Hamerton*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

49 Downloads (Pure)

Abstract

Pseudo-ductile behaviour has previously been demonstrated in a [±45n]s carbon fibre composite via fibre rotation. To further develop the pseudo-ductile response, the high strain properties of the matrix should be considered to avoid strain localisation and potentially exploit strain-hardening in an amorphous thermoplastic matrix. For the first time, polycarbonate, a high strain-to-failure matrix is utilised in a pseudo-ductile composite design and compared to a high performance thermoset fibre composite containing an epoxy resin. The use of polycarbonate leads to enhanced pseudo-ductile strain (49%), longitudinal strength (24%) and apparent in-plane shear strength (26%), albeit with a reduction in elastic modulus (26%), shear chord modulus (22%) and yield strength (26%).
Original languageEnglish
Article number108261
Number of pages6
JournalComposites Science and Technology
Volume197
Early online date29 May 2020
DOIs
Publication statusPublished - 8 Sep 2020

Keywords

  • polymer-matrix composites (PMCs)
  • polymers
  • mechanical properties
  • Non-linear behaviour
  • pseudo-ductility

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