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Energy in elastic fiber embedded in elastic matrix containing incident SH waveA single elastic fiber embedded in an infinite elastic matrix is considered. An incident plane SH wave is assumed in the infinite matrix, and an expression is derived for the total energy in the fiber due to the incident SH wave. A nondimensional form of the fiber energy is plotted as a function of the nondimensional wavenumber of the SH wave. It is shown that the fiber energy attains maximum values at specific values of the wavenumber of the incident wave. The results obtained here are interpreted in the context of phenomena observed in acousto-ultrasonic experiments on fiber reinforced composite materials.
Document ID
19890009323
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Williams, James H., Jr. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Nagem, Raymond J. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1989
Publication Information
Publisher: NASA
Subject Category
Quality Assurance And Reliability
Report/Patent Number
E-4489
NAS 1.26:4205
NASA-CR-4205
Accession Number
89N18694
Funding Number(s)
PROJECT: RTOP 506-43-11
CONTRACT_GRANT: NAG3-328
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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