Identification of kissing defects in adhesive bonds using infrared thermography
Identification of kissing defects in adhesive bonds using infrared thermography
A carbon fibre reinforced plastic (CFRP) adhesively bonded single lap joint sample is used for comparing the detection of different defect types using pulsed phase thermography (PPT). Firstly, a polytetrafluoroethene (PTFE) insert, of the type widely used to simulate defects in composite materials, was added to the bond line of the joint. Liquid layer kissing defects were simulated using silicon grease. PPT clearly identified the PTFE but not the silicon grease contamination. The PPT identified the silicon grease defect when the joint was loaded. It is postulated that kissing defects can be detected using thermography if a small load is applied to the joint, as loading opens the defect and produces a gap that provides sufficient thermal contrast for detection. Thermoelastic stress analysis (TSA) is used to validate the approach. On-site application is addressed both in terms of the load application and the use of low cost infrared (IR) detectors.
C. non-destructive testing, C. thermal analysis, B. composites, kissing defects, pulse phase thermography
168-178
Tighe, Rachael C.
ba9457a6-39d9-4023-894e-6d61bd64700e
Dulieu-Barton, Janice M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Quinn, Simon
0805cab8-0ef5-4f65-9ed6-25fd5563d1a6
January 2016
Tighe, Rachael C.
ba9457a6-39d9-4023-894e-6d61bd64700e
Dulieu-Barton, Janice M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Quinn, Simon
0805cab8-0ef5-4f65-9ed6-25fd5563d1a6
Tighe, Rachael C., Dulieu-Barton, Janice M. and Quinn, Simon
(2016)
Identification of kissing defects in adhesive bonds using infrared thermography.
International Journal of Adhesion and Adhesives, 64, .
(doi:10.1016/j.ijadhadh.2015.10.018).
Abstract
A carbon fibre reinforced plastic (CFRP) adhesively bonded single lap joint sample is used for comparing the detection of different defect types using pulsed phase thermography (PPT). Firstly, a polytetrafluoroethene (PTFE) insert, of the type widely used to simulate defects in composite materials, was added to the bond line of the joint. Liquid layer kissing defects were simulated using silicon grease. PPT clearly identified the PTFE but not the silicon grease contamination. The PPT identified the silicon grease defect when the joint was loaded. It is postulated that kissing defects can be detected using thermography if a small load is applied to the joint, as loading opens the defect and produces a gap that provides sufficient thermal contrast for detection. Thermoelastic stress analysis (TSA) is used to validate the approach. On-site application is addressed both in terms of the load application and the use of low cost infrared (IR) detectors.
Text
IJAA Tighe et al_eprints.pdf
- Accepted Manuscript
More information
Accepted/In Press date: 16 October 2015
e-pub ahead of print date: 28 October 2015
Published date: January 2016
Keywords:
C. non-destructive testing, C. thermal analysis, B. composites, kissing defects, pulse phase thermography
Organisations:
Engineering Mats & Surface Engineerg Gp
Identifiers
Local EPrints ID: 383604
URI: http://eprints.soton.ac.uk/id/eprint/383604
ISSN: 0143-7496
PURE UUID: 176b2f0d-b394-4c3f-a245-1af4417182e6
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Date deposited: 06 Nov 2015 12:27
Last modified: 14 Mar 2024 21:45
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Contributors
Author:
Rachael C. Tighe
Author:
Simon Quinn
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