The role of embedded bioinspired vasculature on damage formation in self-healing carbon fibre reinforced composites

C. J. Norris, I. P. Bond, R. S. Trask

Research output: Contribution to journalArticle

85 Citations (Scopus)

Abstract

This paper presents the design considerations for successful incorporation of bioinspired vascules into a carbon fibre-reinforced epoxy composite laminate. A vasculature capable of delivering functional agents from an external reservoir to regions of internal damage potentially offers the host structure an autonomous self-healing function without incurring a mass penalty. Minimising disruption to the host laminate, in terms of fibre architecture, is key to the successful implementation of such a technology. Two vascule fabrication techniques are demonstrated. The resulting effective internal defects are characterised along with their interaction with a 10 J damage event, determined via non-destructive C-scanning and a compression after impact test protocol. The effects of vascule diameter, orientation and interface location are also considered. Vascule orientation was found to be the controlling factor, in terms of maintaining compression performance, regardless of the fabrication route used. However, the fabrication route adopted plays a significant role on the morphology of the impact damage and subsequent vascule-damage connectivity, a pre-requisite for self-healing.

Original languageEnglish
Pages (from-to)639-648
Number of pages10
JournalComposites Part A - Applied Science and Manufacturing
Volume42
Issue number6
DOIs
Publication statusPublished - Jun 2011

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Keywords

  • A. Carbon fibre
  • B. Impact behaviour
  • D. Mechanical testing
  • Self-healing

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials

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