Biomimetic self-healing of advanced composite structures using hollow glass fibres

R. S. Trask*, I. P. Bond

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

268 Citations (Scopus)

Abstract

The use of functional repair components stored inside hollow reinforcing fibres is being considered as a self-repair system for future composite structures. The incorporation of a self-healing capability within a variety of materials, including fibre reinforced polymers (FRPs), has been investigated by a number of workers previously. This paper considers the placement of self-healing plies within an FRP to mitigate damage occurrence and restore mechanical strength. The flexural strength results indicate that the inclusion of hollow fibres results in an initial strength reduction of 16% from a baseline FRP laminate. However, the effect of impact damage on the performance of the baseline FRP laminate and the laminate containing the hollow fibre layers was comparable, with a flexural strength typically 72–74% of the undamaged state. Self-healing of the damage site saw the laminate recover 87% of the undamaged baseline FRP laminate’s strength. This study provides clear evidence that an FRP laminate containing hollow fibre layers can successfully self-heal. This result suggests that biomimetic repair is now possible for advanced composite structures.
Original languageEnglish
Pages (from-to)704-710
Number of pages7
JournalSmart Materials and Structures
Volume15
Issue number3
DOIs
Publication statusPublished - 1 Jun 2006

Bibliographical note

Publisher: Institute of Physics Publishing

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