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Residual strength and damage characterization of repaired glass/epoxy composite laminates using A.E. and D.I.C

Residual strength and damage characterization of repaired glass/epoxy composite laminates using A.E. and D.I.C
Residual strength and damage characterization of repaired glass/epoxy composite laminates using A.E. and D.I.C
In this paper, the effect of introducing different phases of fibre reinforcement in epoxy matrix at the dressed site in adhesively bonded external patch repair for damaged glass/epoxy composites under in-plane compressive loads was investigated. Three repair materials consisting of an epoxy matrix reinforced with either micro sized particulate fibres, chopped short fibres or continuous fibres were used in this study. Since this investigation extensively focuses on the effect of different types of fibre reinforcements on residual compression properties of repaired glass/epoxy composite laminates, the external patches were avoided. Acoustic emission (AE) and digital image correlation (DIC) were utilized to form qualitative and quantitative assessments of the damage progression profile. The compression results illustrate that reinforcing the epoxy adhesive material with glass fibres significantly increased the residual compression strength of repaired glass/epoxy composite specimens. In particular, the use of chopped fibre reinforced adhesive repair material improved the average residual compressive strength by 18.91% in comparison to the specimens conventionally repaired using neat epoxy resin.
0263-8223
124-139
Andrew, J. Jefferson
200c62ac-0659-4ee5-b589-bb849a33e966
Arumugam, V.
d42b6b9f-19e6-48b5-adde-8d271dde2eb9
Bull, D.J.
3569ba02-89de-4398-a14d-02c3f9b4eab2
Dhakal, H.N.
ed7c4499-110b-4203-b5e7-a2386a1c3214
Andrew, J. Jefferson
200c62ac-0659-4ee5-b589-bb849a33e966
Arumugam, V.
d42b6b9f-19e6-48b5-adde-8d271dde2eb9
Bull, D.J.
3569ba02-89de-4398-a14d-02c3f9b4eab2
Dhakal, H.N.
ed7c4499-110b-4203-b5e7-a2386a1c3214

Andrew, J. Jefferson, Arumugam, V., Bull, D.J. and Dhakal, H.N. (2016) Residual strength and damage characterization of repaired glass/epoxy composite laminates using A.E. and D.I.C. Composite Structures, 152, 124-139. (doi:10.1016/j.compstruct.2016.05.005).

Record type: Article

Abstract

In this paper, the effect of introducing different phases of fibre reinforcement in epoxy matrix at the dressed site in adhesively bonded external patch repair for damaged glass/epoxy composites under in-plane compressive loads was investigated. Three repair materials consisting of an epoxy matrix reinforced with either micro sized particulate fibres, chopped short fibres or continuous fibres were used in this study. Since this investigation extensively focuses on the effect of different types of fibre reinforcements on residual compression properties of repaired glass/epoxy composite laminates, the external patches were avoided. Acoustic emission (AE) and digital image correlation (DIC) were utilized to form qualitative and quantitative assessments of the damage progression profile. The compression results illustrate that reinforcing the epoxy adhesive material with glass fibres significantly increased the residual compression strength of repaired glass/epoxy composite specimens. In particular, the use of chopped fibre reinforced adhesive repair material improved the average residual compressive strength by 18.91% in comparison to the specimens conventionally repaired using neat epoxy resin.

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Accepted/In Press date: 2 May 2016
e-pub ahead of print date: 3 May 2016
Published date: 15 September 2016

Identifiers

Local EPrints ID: 432659
URI: http://eprints.soton.ac.uk/id/eprint/432659
ISSN: 0263-8223
PURE UUID: ef4bb3d4-2698-4828-a7d1-8710a150e966
ORCID for D.J. Bull: ORCID iD orcid.org/0000-0001-6711-6153

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Date deposited: 23 Jul 2019 16:30
Last modified: 17 Dec 2019 01:41

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