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期刊论文

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

金峰Zheng-Hua Qiana) Feng Jin Sohichi Hirose and Tian-Jian Lu

APPLIED PHYSICS LETTERS 95, 073501 2009 ,-0001,():

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摘要/描述

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.

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版权说明:以下全部内容由金峰上传于   2009年11月10日 09时20分40秒,版权归本人所有。

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