Measuring and testing – Vibration – Resonance – frequency – or amplitude study
Reexamination Certificate
2005-02-01
2005-02-01
Williams, Hezron (Department: 2856)
Measuring and testing
Vibration
Resonance, frequency, or amplitude study
C702S113000
Reexamination Certificate
active
06848311
ABSTRACT:
A method to measure the complex frequency-dependent dilatational and shear wavenumbers of a material under a static compressional force. The material is first vibrated in a vertical and horizontal directions while obtaining transfer functions in each direction. The two transfer functions are combined with a theoretical model to estimate a dilatational wavenumber and a shear wavenumber. The wavenumbers can be utilized to give the complex dilatational wavespeed, complex shear wavespeed, complex Lamé constants, complex Young's modulus, complex shear modulus, and complex Poisson's ratio.
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Kasischke James M.
Miller Rose M.
Nasser Jean Paul A.
Oglo Michael F.
The United States of America as represented by the Secretary of
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