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Materials 2019, 12(7), 1185; https://doi.org/10.3390/ma12071185

On the Thickness Quantification of Composite Materials by Using Lock-In Thermography

Politecnico di Bari, Viale Japigia, 182, 70126 Bari, Italy
Received: 4 March 2019 / Revised: 3 April 2019 / Accepted: 9 April 2019 / Published: 11 April 2019
(This article belongs to the Section Structure Analysis and Characterization)
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Abstract

Many structural components made of composite materials need an accurate thickness control during fabrication and/or maintenance. In this regard, various non-destructive techniques can be used for the online measuring of thickness of large components such as wings and fuselage in the aerospace industry. In this work, the capabilities of lock-in thermography technique in thickness measurement of glass fiber reinforced plastic material were investigated and a correct procedure has been proposed to ensure the best measurement accuracy. An analytical approach and several tests were carried out on a sample specimen with the aim to study the main test parameters. Finally, the limits of technique have been discussed. View Full-Text
Keywords: thickness; lock-in thermography; non-destructive testing; composites; glass fiber reinforced plastic (GFRP) thickness; lock-in thermography; non-destructive testing; composites; glass fiber reinforced plastic (GFRP)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Palumbo, D. On the Thickness Quantification of Composite Materials by Using Lock-In Thermography. Materials 2019, 12, 1185.

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