Investigation of impact damage characteristics in natural fibre composite laminates using novel micro CT imaging techniques

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Abstract

Natural fibre composites are a lightweight alternative to the conventional synthetic fibres offering a more sustainable and environmental friendly material for various structural and non-structural applications. Hybrid composites consist of the combining of natural fibres with conventional ones, resulting in a more advanced structure. This work focuses on the experimental investigation of low energy impact damage characteristics of woven flax fibre reinforced vinyl ester based composite and carbon fibre hybridised flax hybrid composite subjected to low velocity impact. Impact tests at two different incident energy levels (25 and 35 Joules) were performed on flax and carbon/flax hybrid composite specimens. The damage and damage mechanisms of the impacted specimens were analysed using X-ray micro computed tomography (CT). Various layer-by-layer imaging representations were analysed in order to understand how the damage was being initiated and developed. The results suggested that carbon fibre hybridisation exhibited significantly improved impact resistance behaviour, which was also confirmed by micro-CT examination.
Original languageEnglish
Title of host publication1st International Conference on Health Monitoring of Civil & Maritime Structures
Subtitle of host publicationHeaMES 2018
PublisherASRANet Ltd
Pages62-70
ISBN (Print)978-1-9998536-4-8
Publication statusPublished - 6 Feb 2018
Event1st International Conference on Health Monitoring of Civil & Maritime Structures - London
Duration: 5 Feb 20186 Feb 2018

Conference

Conference1st International Conference on Health Monitoring of Civil & Maritime Structures
Abbreviated titleHeaMES
Period5/02/186/02/18

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