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Rapid detection and quantification of impact damage in composite structuresNDE results from thermographic and volumetric ultrasonic techniques are presented to illustrate the multidisciplinary NDE approach to impact-damage detection in such composite structures as are increasingly prevalent in helicopters. Attention is given to both flat-panel and 'y-stiffened' panel specimens; these were fabricated either with kevlar or carbon fiber through-the-thickness reinforcements. While thermal inspection identifies impact damage, volumetric imaging quantifies the impact-generated delaminations through the volume of the structure.
Document ID
19930043981
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zalameda, Joseph N.
(NASA Langley Research Center Hampton, VA, United States)
Farley, Gary
(U.S. Army, Aerostructure Directorate; NASA, Langley Research Center Hampton, VA, United States)
Smith, Barry T.
(College of William and Mary Williamsburg, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: AHS National Technical Specialists' Meeting on Rotorcraft Structures, Williamsburg, VA, Oct. 29-31, 1991, Proceedings (A93-27951 10-05)
Publisher: American Helicopter Society
Subject Category
Mechanical Engineering
Accession Number
93A27978
Funding Number(s)
CONTRACT_GRANT: NAG1-1063
Distribution Limits
Public
Copyright
Other

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