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Proceedings Paper

Thermal inspection of composite honeycomb structures
Author(s): Joseph N. Zalameda; F. Raymond Parker
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Paper Abstract

Composite honeycomb structures continue to be widely used in aerospace applications due to their low weight and high strength advantages. Developing nondestructive evaluation (NDE) inspection methods are essential for their safe performance. Pulsed thermography is a commonly used technique for composite honeycomb structure inspections due to its large area and rapid inspection capability. Pulsed thermography is shown to be sensitive for detection of face sheet impact damage and face sheet to core disbond. Data processing techniques, using principal component analysis to improve the defect contrast, are presented. In addition, limitations to the thermal detection of the core are investigated. Other NDE techniques, such as computed tomography X-ray and ultrasound, are used for comparison to the thermography results.

Paper Details

Date Published: 21 May 2014
PDF: 8 pages
Proc. SPIE 9105, Thermosense: Thermal Infrared Applications XXXVI, 91050C (21 May 2014); doi: 10.1117/12.2052938
Show Author Affiliations
Joseph N. Zalameda, NASA Langley Research Ctr. (United States)
F. Raymond Parker, NASA Langley Research Ctr. (United States)


Published in SPIE Proceedings Vol. 9105:
Thermosense: Thermal Infrared Applications XXXVI
Gregory R. Stockton; Fred P. Colbert; Sheng-Jen (Tony) Hsieh, Editor(s)

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