Transverse tensile strength of unidirectional fibre-reinforced polymers and self-healing of interfacial debonding

K. Sanada, I. Yasuda, Y. Shindo

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)

Abstract

A study of the healing of interfacial debonding in fibre-reinforced polymers (FRPs) was performed, In the composite, a microencapsulated healing agent and a solid chemical catalyst are dispersed within the coating layer on the surface of the fibres. Healing is triggered by crack propagation through the microcapsules, which then release the healing agent into the crack plane. Subsequent exposure of the healing agent to the chemical catalyst initiates polymerisation and bonding of the crack faces, Self-healing is demonstrated on flat tensile specimens of neat epoxy (no fibres) and unidirectional FRPs. The ratio of tensile strengths of the virgin and healed materials is used to quantitatively measure crack healing.

Original languageEnglish
Pages (from-to)67-72
Number of pages6
JournalPlastics, Rubber and Composites
Volume35
Issue number2
DOIs
Publication statusPublished - 2006 Jun 29

Keywords

  • Interface structure
  • Polymer matrix composites
  • Repair
  • Scanning electron microscopy
  • Tension test

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemical Engineering(all)
  • Polymers and Plastics
  • Materials Chemistry

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