Title :
An exact analysis of surface acoustic waves in a plate of functionally graded materials
Author :
Gao, Liming ; Wang, Ji ; Zhong, Zheng ; Du, Jianke
Author_Institution :
Coll. of Aerosp. Eng. & Appl. Mech., Tongji Univ., Shanghai, China
fDate :
12/1/2009 12:00:00 AM
Abstract :
Some traditional applications of structures and devices with homogeneous materials are being gradually replaced by functionally graded materials (FGM) with spatial variation of properties. The analysis of SAW propagating in FGM structures will be different primarily due to variations of material properties and resulting differential equations with variable coefficients. To provide an effective method and accurate results for the analysis of SAWs in FGM structures, we employed the Frobenius method as the only available method for a detailed analysis of SAW in materials with property variations in a linear pattern. Analytical examples are presented to demonstrate the effectiveness of the method and the effect of FGM on changes of surface displacements in SAW propagation.
Keywords :
functionally graded materials; plates (structures); surface acoustic waves; FGM structures; Frobenius method; SAW propagation; functionally graded materials; surface acoustic waves; surface displacements; Acoustic materials; Acoustic waves; Differential equations; Material properties; Polynomials; Shape; Solids; Strips; Surface acoustic waves; Vibrations; Acoustics; Algorithms; Computer Simulation; Manufactured Materials; Materials Testing; Models, Theoretical; Scattering, Radiation;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2009.1360
