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Evaluation of experimental methods for determining dynamic stiffness and damping of composite materialsVarious methods potentially usable for determining dynamic stiffness and damping of composite materials are reviewed. Of these, the following most widely used techniques are singled out for more detailed discussion: free vibration, pulse propagation, and forced vibration response. To illustrate the usefulness and validity of dynamic property data, their application in dynamic analyses and comparison with measured structural response are described for the following composite-material structures: free-free sandwich beam with glass-epoxy facings, clamped-edge sandwich plate with similar facings, free-end sandwich conical shell with similar facings, and boron-epoxy free plate with layers arranged at various orientations.
Document ID
19740052149
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Bert, C. W.
(Oklahoma, University Norman, Okla., United States)
Clary, R. R.
(NASA Langley Research Center Structures Div., Hampton, Va., United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1974
Subject Category
Materials, Nonmetallic
Meeting Information
Meeting: Conference on Composite materials: Testing and design
Location: Williamsburg, VA
Start Date: March 21, 1973
End Date: March 22, 1973
Accession Number
74A34899
Distribution Limits
Public
Copyright
Other

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