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Improved out-of-plane strength and weight reduction using hybrid interface composites

journal contribution
posted on 2019-09-01, 00:00 authored by Filip Stojcevski, Daniel Eyckens, James Randall, L I Marinovic, G Méric, Luke HendersonLuke Henderson
Carbon fiber composites with increased fiber-to-matrix bonding are often susceptible to premature failure due to the creation of overly rigid interfaces. This paper investigates the use of electrochemically functionalised carbon fibers used in novel ‘hybrid interface’ arrangements to improve out-of-plane bending. An improvement of 103.6% in single fiber interfacial shear strength (IFSS) was able to improve out-of-plane strength by 33.6% for short beam shear laminates. However, by combining both functionalised and non-functionalised fibers in complex hybrid interface arrangements such as nature inspired turtle-shell interfaces and circular patterns, mechanical performance was improved significantly. A 170.9% increase to out-of-plane strength was observed using a turtle-shell arrangement which correlated to an 8.7% reduction in composite weight as compared to control fibers.

History

Journal

Composites science and technology

Volume

182

Article number

107730

Pagination

1 - 7

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0266-3538

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2019, Elsevier

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