Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Mechanical measurement system
Reexamination Certificate
2006-06-13
2006-06-13
Barlow, John (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Mechanical measurement system
C073S597000
Reexamination Certificate
active
07062386
ABSTRACT:
A method for measuring the complex frequency-dependent dilatational and shear wavespeeds of a slab of material subjected to insonification. Transfer functions that are obtained by insonifying the material at different angles. Once this is accomplished, the transfer functions are manipulated with an inverse method to yield closed form values of dilatational and shear wavespeeds at any test frequency. The wavespeeds can be combined to determine complex Lamé constants, complex Young's modulus, complex shear modulus, and complex Poisson's ratio.
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Barlow John
Kasischke James M.
Nasser Jean-Paul A.
Stanley Michael P.
Sun Xiuqin
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