Location

La Jolla, CA

Start Date

1-1-1993 12:00 PM

Description

In recent paper [1] Nayfeh and Chimenti presented the analysis of the propagation of free waves in a general anisotropic plate. Closed form secular equations which isolate the mathematical conditions for symmetric and antisymmetric wave mode propagation in completely separate terms were obtained. By paralleling the procedure of Nayfeh and Chimenti [1], Nayfeh and Chien [2] presented exact solutions for the interaction of elastic waves with fluid-loaded piezoelectric plates. The technique used was shown to formally handle the most general anisotropy (i.e. the triclinic) case. The plate was immersed in liquid and incident waves impinged upon it from the liquid at arbitrary polar and azimuthal angles. Simple exact analytical expressions were derived for the reflection and transmission coefficients of different electric boundary conditions, namely open and shorted, from which important propagation characteristics are identified. For general discussions of piezoelectric effects we refer the reader to the standard books of Auld [3], Cady [4], and Tiersten [5].

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

12A

Chapter

Chapter 1: Development of Standard Techniques

Section

Elastic Wave Propagation

Pages

171-178

DOI

10.1007/978-1-4615-2848-7_21

Language

en

File Format

application/pdf

Share

COinS
 
Jan 1st, 12:00 PM

Guided waves in piezoelectric plates

La Jolla, CA

In recent paper [1] Nayfeh and Chimenti presented the analysis of the propagation of free waves in a general anisotropic plate. Closed form secular equations which isolate the mathematical conditions for symmetric and antisymmetric wave mode propagation in completely separate terms were obtained. By paralleling the procedure of Nayfeh and Chimenti [1], Nayfeh and Chien [2] presented exact solutions for the interaction of elastic waves with fluid-loaded piezoelectric plates. The technique used was shown to formally handle the most general anisotropy (i.e. the triclinic) case. The plate was immersed in liquid and incident waves impinged upon it from the liquid at arbitrary polar and azimuthal angles. Simple exact analytical expressions were derived for the reflection and transmission coefficients of different electric boundary conditions, namely open and shorted, from which important propagation characteristics are identified. For general discussions of piezoelectric effects we refer the reader to the standard books of Auld [3], Cady [4], and Tiersten [5].