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Acoustic fatigue characterization of carbon/carbon panelsData from a sonic fatigue test of a blade-stiffened carbon/carbon panel is analyzed to determine the progression of damage to failure. The reduction in stiffness, as observed from acceleration measurements taken during the test, is correlated with the physical damage. Damage was measured through visual inspection, thermographic measurements, and through the novel use of vibration data collected using a scanning laser vibrometer.
Document ID
19940036328
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Rizzi, S. A.
(NASA Langley Research Center Hampton, VA, United States)
Clevenson, S. A.
(NASA Langley Research Center Hampton, VA, United States)
Daniels, E. F.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: International Congress on Experimental Mechanics, 7th, Las Vegas, NV, June 8-11, 1992, Proceedings. Vol. 2 (A94-12901 02-39)
Publisher: Society for Experimental Mechanics, Inc.
Subject Category
Composite Materials
Accession Number
94A12983
Distribution Limits
Public
Copyright
Other

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