The University of Southampton
University of Southampton Institutional Repository

Disbond growth detection in composite-composite single-lap joints using chirped FBG sensors

Disbond growth detection in composite-composite single-lap joints using chirped FBG sensors
Disbond growth detection in composite-composite single-lap joints using chirped FBG sensors
Adhesively bonded composite–composite single-lap joints, with cross-ply GFRP adherends, have been cyclically loaded to initiate disbonding at either end of the overlap length. Disbond initiation and growth have been monitored using a combination of in situ photography (the joint is transparent) and a single chirped fibre Bragg grating (CFBG) sensor embedded within one composite adherend (with the low-wavelength end of the sensor adjacent to the cut end) and not in the adhesive bondline. Sensors having the same spectral bandwidth (20 nm) and lengths in the range 15–60 mm have been tested. The experimental results have been modelled using a combination of finite-element analysis and commercial software for predicting FBG spectra, and the predictions are in very good agreement with the experimental results. In all cases, it has been shown that the position of the disbond front can be located using the CFBG sensors with a precision of about 2 mm.
adhesive joints, disbonding, finite-element analysis (fea), non-destructive testing
0266-3538
2410-2417
Palaniappan, J.
b5cef093-6621-4904-9b47-1ad11c954139
Ogin, S.L.
6067d51e-8785-4e60-96a6-05038f6a0d31
Thorne, A.M.
4a7e0ab8-c6c3-406d-8958-5bc6f990d611
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139
Crocombe, A.D.
ecc8a655-260f-4625-90de-2df89503094e
Capell, T.F.
e8334144-2ff4-4559-be46-cf7f23092802
Tjin, S.C.
2986cfba-d4ac-4c64-95d3-84093745a566
Mohanty, L.
00a4fe8f-2016-40cc-b59a-d03aca681215
Palaniappan, J.
b5cef093-6621-4904-9b47-1ad11c954139
Ogin, S.L.
6067d51e-8785-4e60-96a6-05038f6a0d31
Thorne, A.M.
4a7e0ab8-c6c3-406d-8958-5bc6f990d611
Reed, G.T.
ca08dd60-c072-4d7d-b254-75714d570139
Crocombe, A.D.
ecc8a655-260f-4625-90de-2df89503094e
Capell, T.F.
e8334144-2ff4-4559-be46-cf7f23092802
Tjin, S.C.
2986cfba-d4ac-4c64-95d3-84093745a566
Mohanty, L.
00a4fe8f-2016-40cc-b59a-d03aca681215

Palaniappan, J., Ogin, S.L., Thorne, A.M., Reed, G.T., Crocombe, A.D., Capell, T.F., Tjin, S.C. and Mohanty, L. (2008) Disbond growth detection in composite-composite single-lap joints using chirped FBG sensors. Composites Science and Technology, 68 (12), 2410-2417. (doi:10.1016/j.compscitech.2007.09.020).

Record type: Article

Abstract

Adhesively bonded composite–composite single-lap joints, with cross-ply GFRP adherends, have been cyclically loaded to initiate disbonding at either end of the overlap length. Disbond initiation and growth have been monitored using a combination of in situ photography (the joint is transparent) and a single chirped fibre Bragg grating (CFBG) sensor embedded within one composite adherend (with the low-wavelength end of the sensor adjacent to the cut end) and not in the adhesive bondline. Sensors having the same spectral bandwidth (20 nm) and lengths in the range 15–60 mm have been tested. The experimental results have been modelled using a combination of finite-element analysis and commercial software for predicting FBG spectra, and the predictions are in very good agreement with the experimental results. In all cases, it has been shown that the position of the disbond front can be located using the CFBG sensors with a precision of about 2 mm.

Full text not available from this repository.

More information

Submitted date: May 2007
e-pub ahead of print date: 15 October 2007
Published date: September 2008
Keywords: adhesive joints, disbonding, finite-element analysis (fea), non-destructive testing
Organisations: Optoelectronics Research Centre, Engineering Mats & Surface Engineerg Gp

Identifiers

Local EPrints ID: 50292
URI: https://eprints.soton.ac.uk/id/eprint/50292
ISSN: 0266-3538
PURE UUID: e85fdf9e-1bb0-4c13-9a77-5f0f61ad4bf9

Catalogue record

Date deposited: 12 Feb 2008
Last modified: 16 Oct 2018 16:31

Export record

Altmetrics

Contributors

Author: J. Palaniappan
Author: S.L. Ogin
Author: A.M. Thorne
Author: G.T. Reed
Author: A.D. Crocombe
Author: T.F. Capell
Author: S.C. Tjin
Author: L. Mohanty

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 https://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.

×