Location

Snowmass Village, CO

Start Date

1-1-1995 12:00 AM

Description

The current work addresses ultrasonic wave interaction within an orthotropic layer with two disk transducers in an acousto-ultrasonic mode. Earlier works have focused on studies of the influence of a rectangular transducer [1,2]. Acousto-ultrasonic techniques are useful in many cases where there is access to one side only. The different wave modes set-up in the layer are sensitive to many parameters such as source size, frequency, direction, etc. Computation of the wave structure within this layer of finite thickness is necessary to acquire quantitative information about material characterization and discontinuities. An attempt is made here to characterize the number and velocity of propagation modes with respect to direction and frequency. A special case of a composite is considered with particular values for azimuthal angle and frequency. Amplitude and velocity values for piston and parabolic source distributions have been calculated.

Volume

14B

Chapter

Chapter 5: Engineered Materials

Section

Composite Properties

Pages

1257-1262

DOI

10.1007/978-1-4615-1987-4_160

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Acousto-Ultrasonic Source Influence in an Anisotropic Layer

Snowmass Village, CO

The current work addresses ultrasonic wave interaction within an orthotropic layer with two disk transducers in an acousto-ultrasonic mode. Earlier works have focused on studies of the influence of a rectangular transducer [1,2]. Acousto-ultrasonic techniques are useful in many cases where there is access to one side only. The different wave modes set-up in the layer are sensitive to many parameters such as source size, frequency, direction, etc. Computation of the wave structure within this layer of finite thickness is necessary to acquire quantitative information about material characterization and discontinuities. An attempt is made here to characterize the number and velocity of propagation modes with respect to direction and frequency. A special case of a composite is considered with particular values for azimuthal angle and frequency. Amplitude and velocity values for piston and parabolic source distributions have been calculated.