Determination of the spectral content of transient stress wave e

Details Determination of the spectral content of transient stress wave e Determination of the spectral content of transient stress wave e

1986-03-06

1987-08-25

Birmiel, Howard A.

Measuring and testing

Vibration

By mechanical waves

73579, 73586, 73599, G01N 2900

Patent

active

046884297

ABSTRACT:
The spectral content of a transient stress wave event occuring on a plate-like structure is determined by locating a transducer on the surface of the structure at a position remote from the location of the transient stress wave event. Lamb waves resulting from and characteristic of the transient stress wave event propogate through the plate-like structure in a dispersive manner to be intercepted by the transducer. Analysis of the transducer output enables the spectral content of the transient stress wave event to be realized.

REFERENCES:
patent: 3572099 (1971-03-01), Wieczoirek
patent: 4218924 (1980-08-01), Fortunko et al.
patent: 4593568 (1986-06-01), Telford et al.
Ultrasonic Technology, Goldman, 1962, Reinhold Publ. Comp., pp. 21-24.
Ultrasonic Testing of Materials, Krautkramer, 1975, Springer-Verlag.

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