The University of Southampton
University of Southampton Institutional Repository

Aligned discontinuous carbon fibre tows in hybrid composites and their tensile behaviour: an experimental study

Aligned discontinuous carbon fibre tows in hybrid composites and their tensile behaviour: an experimental study
Aligned discontinuous carbon fibre tows in hybrid composites and their tensile behaviour: an experimental study

The paper aims to explore potential higher value applications of discontinuous carbon fibre tows. A vibration-assisted dry alignment method is presented to align the discontinuous fibre tows between conventional dry reinforcement mats/fabrics to fabricate cost-effective hybrid composites. Its viability is demonstrated by successful fabrication of two hybrid composite panels, where thin layers of aligned 12 mm discontinuous carbon fibre tows were deposited between E-glass chopped strand mats or woven fabrics respectively, via an out-of-autoclave resin infusion process; 54% and 81% of the fibre tows were aligned in the range of ±5° and ±10°, respectively. The tensile test results clearly demonstrate the importance of having the discontinuous fibre tows highly aligned in the hybrid composites, which shows increased stiffness (up to 24.4%) and strength (up to 59.9%) over the non-aligned hybrid composites. The aligned hybrid composites also exhibit a non-linear pseudo-ductile response due to subcritical progressive damage compared to the catastrophic brittle failure of the baseline non-hybrid E-glass and non-aligned hybrid composites, despite the tensile strength knockdown (up to −40.3%) due to premature inter-tow debonding. They also display increased stiffness up to 90%.

Discontinuous reinforcement, fibre tow alignment, hybrid composites, mechanical testing
0021-9983
1-15
Gan, Khong Wui
b0c1e988-d375-4bbc-acdc-c77a6da1f904
Ho, You Wei
bf2b7395-c153-453b-85a9-6435741d6b57
Ow, Zheng Yang
b3872aa3-4d69-4bc1-b5bb-eacb673bff6f
Israr, Haris Ahmad
c5660cc8-a748-4e9f-8ac2-9925f3f8b32f
Wong, King Jye
2dd6e2bb-00dc-40cd-8ccb-cd111bd4c553
Gan, Khong Wui
b0c1e988-d375-4bbc-acdc-c77a6da1f904
Ho, You Wei
bf2b7395-c153-453b-85a9-6435741d6b57
Ow, Zheng Yang
b3872aa3-4d69-4bc1-b5bb-eacb673bff6f
Israr, Haris Ahmad
c5660cc8-a748-4e9f-8ac2-9925f3f8b32f
Wong, King Jye
2dd6e2bb-00dc-40cd-8ccb-cd111bd4c553

Gan, Khong Wui, Ho, You Wei, Ow, Zheng Yang, Israr, Haris Ahmad and Wong, King Jye (2019) Aligned discontinuous carbon fibre tows in hybrid composites and their tensile behaviour: an experimental study. Journal of Composite Materials, 1-15. (doi:10.1177/0021998319849697).

Record type: Article

Abstract

The paper aims to explore potential higher value applications of discontinuous carbon fibre tows. A vibration-assisted dry alignment method is presented to align the discontinuous fibre tows between conventional dry reinforcement mats/fabrics to fabricate cost-effective hybrid composites. Its viability is demonstrated by successful fabrication of two hybrid composite panels, where thin layers of aligned 12 mm discontinuous carbon fibre tows were deposited between E-glass chopped strand mats or woven fabrics respectively, via an out-of-autoclave resin infusion process; 54% and 81% of the fibre tows were aligned in the range of ±5° and ±10°, respectively. The tensile test results clearly demonstrate the importance of having the discontinuous fibre tows highly aligned in the hybrid composites, which shows increased stiffness (up to 24.4%) and strength (up to 59.9%) over the non-aligned hybrid composites. The aligned hybrid composites also exhibit a non-linear pseudo-ductile response due to subcritical progressive damage compared to the catastrophic brittle failure of the baseline non-hybrid E-glass and non-aligned hybrid composites, despite the tensile strength knockdown (up to −40.3%) due to premature inter-tow debonding. They also display increased stiffness up to 90%.

Full text not available from this repository.

More information

e-pub ahead of print date: 12 May 2019
Keywords: Discontinuous reinforcement, fibre tow alignment, hybrid composites, mechanical testing

Identifiers

Local EPrints ID: 433263
URI: http://eprints.soton.ac.uk/id/eprint/433263
ISSN: 0021-9983
PURE UUID: 85ef87d2-84c5-428c-84b4-7b47e90d80d8

Catalogue record

Date deposited: 12 Aug 2019 16:30
Last modified: 07 Oct 2020 01:07

Export record

Altmetrics

Contributors

Author: Khong Wui Gan
Author: You Wei Ho
Author: Zheng Yang Ow
Author: Haris Ahmad Israr
Author: King Jye Wong

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×