Fracture performance of fibre-reinforced epoxy foam
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Published version
Author(s)
Irven, George
Carolan, Declan
Fergusson, Alexander
Dear, John P
Type
Journal Article
Abstract
Low density aramid and carbon fibre-reinforced epoxy foam has been synthesised with the aim of improving mechanical properties, principally fracture performance. The foam properties measured were fracture energy, compressive strength, and density. The influence of fibre type, loading, and length was investigated. In addition, composite face-sheet bond tests were performed to ascertain how effective toughness transferred from individual component to composite structure. In general, the addition of fibres improved the mechanical performance of reinforced samples compared to the control foam. Increases in compressive strength were moderate whilst fracture energy was increased by up to 107% from 124 J/m2 to 256 J/m2 by the addition of 0.75 mm aramid fibres. Increased fracture energy of the foam and the presence of fibres on the foam surface, caused an increase in face-sheet bond propagation fracture toughness of 50% from 277 J/m2 to 416 J/m2.
Date Issued
2023-02
Date Acceptance
2022-11-17
Citation
Composites Part B: Engineering, 2023, 250, pp.1-12
ISSN
1359-8368
Publisher
Elsevier BV
Start Page
1
End Page
12
Journal / Book Title
Composites Part B: Engineering
Volume
250
Copyright Statement
© 2022 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
Identifier
https://www.sciencedirect.com/science/article/pii/S135983682200806X?via%3Dihub
Publication Status
Published
Article Number
110433
Date Publish Online
2022-11-18