Characterization and analysis of carbon fibre-reinforced polymer composite laminates with embedded circular vasculature

C. -Y. Huang, R. S. Trask, I. P. Bond

Research output: Contribution to journalArticle (Academic Journal)peer-review

96 Citations (Scopus)

Abstract

A study of the influence of embedded circular hollow vascules on structural performance of a fibre-reinforced polymer (FRP) composite laminate is presented. Incorporating such vascules will lead to multi-functional composites by bestowing functions such as self-healing and active thermal management. However, the presence of off-axis vascules leads to localized disruption to the fibre architecture, i.e. resin-rich pockets, which are regarded as internal defects and may cause stress concentrations within the structure. Engineering approaches for creating these simple vascule geometries in conventional FRP laminates are proposed and demonstrated. This study includes development of a manufacturing method for forming vascules, microscopic characterization of their effect on the laminate, finite element (FE) analysis of crack initiation and failure under load, and validation of the FE results via mechanical testing observed using high-speed photography. The failure behaviour predicted by FE modelling is in good agreement with experimental results. The reduction in compressive strength owing to the embedding of circular vascules ranges from 13 to 70 per cent, which correlates with vascule dimension.

Translated title of the contributionCharacterisation and Analysis of CFRP Composite Laminates with Embedded Circular Vasculature
Original languageEnglish
Pages (from-to)1229-1241
Number of pages13
JournalJournal of the Royal Society Interface
Volume7
Issue number49
DOIs
Publication statusPublished - 6 Aug 2010

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