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[期刊]

Effects of material gradient on transverse surface waves in piezoelectric coupled solid media

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Author:

Qian, Zheng-Hua (Qian, Zheng-Hua.) | Jin, Feng (Jin, Feng.) | Hirose, Sohichi (Hirose, Sohichi.) | Unfold

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SCIE EI Scopus

Abstract:

An analytical study on transverse surface waves propagating in a functionally graded material carrying a piezoelectric layer is carried out by Wentzel-Kramers-Brillouin technique. Dispersion relations for the existence of the waves are obtained for material gradient of arbitrary functions and the effects of material gradient on wave propagation are quantified. Numerical examples show the presence of material gradient significantly affects long waves but has only negligible effects on short waves. Depending on whether the surface wave velocity is smaller or greater than the bulk-shear-wave velocity in the piezoelectric layer, two different types of dispersion behavior are discussed.

Keyword:

dispersion relations elastic waves functionally graded materials piezoelectric materials surface acoustic waves WKB calculations

Author Community:

  • [ 1 ] [Qian, Zheng-Hua; Hirose, Sohichi] Tokyo Inst Technol, Dept Mech & Environm Informat, Tokyo 1528550, Japan
  • [ 2 ] [Jin, Feng; Lu, Tian-Jian] Xi An Jiao Tong Univ, MOE Key Lab Strength & Vibrat, Xian 710049, Peoples R China

Reprint Author's Address:

  • Tokyo Inst Technol, Dept Mech & Environm Informat, Tokyo 1528550, Japan.

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Related Article:

Source :

APPLIED PHYSICS LETTERS

ISSN: 0003-6951

Year: 2009

Issue: 7

Volume: 95

3 . 5 5 4

JCR@2009

3 . 7 9 1

JCR@2020

ESI Discipline: PHYSICS;

JCR Journal Grade:1

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count: 8

SCOPUS Cited Count:

30 Days PV: 7

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