Low-Energy Sonic Thermographic Inspection of Impact Damage in Aerospace Composites

Low-Energy Sonic Thermographic Inspection of Impact Damage in Aerospace Composites

Kelly A. Tsoi, Chris Brooks, Nik Rajic, Cedric Antolis

Abstract. This paper details an investigation into the use of an alternate sonic thermography inspection process which uses both low-energy acoustic coupling and an inexpensive microbolometer camera to detect barely visible impact damage in composite structures. The impetus is to create a system that is affordable, robust, rugged and easy to use in the field. This paper shows that the new system is capable of detecting barely visible impact damage with a performance comparable to that of conventional sonic thermography.

Keywords
Sonic Thermography, Non-Destructive Testing, Low Energy, Kissing Bonds

Published online 2/20/2021, 8 pages
Copyright © 2021 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Kelly A. Tsoi, Chris Brooks, Nik Rajic, Cedric Antolis, Low-Energy Sonic Thermographic Inspection of Impact Damage in Aerospace Composites, Materials Research Proceedings, Vol. 18, pp 53-60, 2021

DOI: https://doi.org/10.21741/9781644901311-7

The article was published as article 7 of the book Structural Health Monitoring

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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