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Thermal Inspection of Composite Honeycomb StructuresComposite 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.
Document ID
20140006406
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Zalameda, Joseph N.
(NASA Langley Research Center Hampton, VA, United States)
Parker, F. Raymond
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
May 28, 2014
Publication Date
May 6, 2014
Subject Category
Structural Mechanics
Report/Patent Number
NF1676L-18758
Meeting Information
Meeting: SPIE (DSS 2014 ) Defense and Security Symposium
Location: Baltimore, MD
Country: United States
Start Date: May 6, 2014
End Date: May 9, 2014
Sponsors: International Society for Optical Engineering
Funding Number(s)
WBS: WBS 724297.40.44.07
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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