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Non-destructive evaluation of compositesThe composite materials have been used in aerospace industries for quite some time. Several non-destructive evaluation (NDE) methods have been developed to inspect composites in order to detect flaws, matrix cracking, and delamination. These methods include ultrasonics, acoustic emission, shearography, thermography, X-ray, and digital image correlation. The NDE Branch of Marshall Space Flight Center has recently acquired a thermal imaging NDE system. The same system has been used at NASA Langley Research Center for detecting disbonds. In order to compare different NDE methods, three carbon/carbon composite panels were used for experiment using ultrasonic C-scan, shearography, and thermography methods. These panels have teflon inserts to simulate the delamination between plies in a composite panel. All three methods have successfully located the insert. The experiment and results are presented in the following sections.
Document ID
19960025438
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Chu, Tsuchin Philip (University of Southern Illinois Carbondale, IL United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1996
Publication Information
Publication: Research Reports: 1995 NASA/ASEE Summer Faculty Fellowship Program
Subject Category
Composite Materials
Accession Number
96N27475
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19960025428Collected WorksResearch Reports: 1995 NASA/ASEE Summer Faculty Fellowship Program
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