Extensional and flexural waves in a thin-walled graphite/epoxy tube
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Authors
Prosser, William H.
Dorighi, John
Gorman, Michael R.
Subjects
Acoustic emission
Composite cylinder
Plate waves
Laminated plate theory
Composite cylinder
Plate waves
Laminated plate theory
Advisors
Date of Issue
1992
Date
Publisher
Technomic Publishing Company, Inc.
Language
Abstract
Simulated acoustic emission signals were induced in a thin-walled graphite/epoxy tube by means of lead breaks (Hsu-Neilsen source). the tube is of similar materials and layup to be used by NASA in fabricating the struts of Space Station Freedom. The resulting waveforms were detected by broad band ultrasonic transducers and digitized, Measurements of the velocities of the extensional and flexural modes were made for propagation directions along the tube axis (0 degrees), around the tube circumference (90 degrees) and at an angle of 45 degrees. these velocities were found to be in agreement with classical plate theory.
Type
Article
Description
Series/Report No
Department
Aeronautics and Astronautics
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
NASA Langley Research Center
Funding
Format
12 p.
Citation
W.H. Prosser, J. Dorighi, M.R. Gorman, "Extensional and flexural waves in a thin-walled graphite/epoxy tube," Journal of Composite Materials, v. 26, no. 14 (1992), pp. 2016-2027
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.