Journal
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
Volume 64, Issue -, Pages 168-178Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijadhadh.2015.10.018
Keywords
Non-destructive testing; Thermal analysis; Composites; Kissing defects; Pulse phase thermography
Funding
- Lloyd's Register Foundation, United Kingdom
- EPSRC, United Kingdom
Ask authors/readers for more resources
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) 2015 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available