Transverse surface waves in a functionally graded piezoelectric substrate coated with a finite-thickness metal waveguide layer

2009 ◽  
Vol 94 (2) ◽  
pp. 023501 ◽  
Author(s):  
Zheng-Hua Qian ◽  
Feng Jin ◽  
Tian-Jian Lu ◽  
Kikuo Kishimoto
Keyword(s):  
Surface Waves ◽  
Finite Thickness ◽  
Functionally Graded ◽  
Waveguide Layer ◽  
Metal Waveguide ◽  
Functionally Graded Piezoelectric ◽  
Piezoelectric Substrate

Transverse surface waves in a layered structure with a functionally graded piezoelectric substrate and a hard dielectric layer

Ultrasonics ◽  
2009 ◽  
Vol 49 (3) ◽  
pp. 293-297 ◽  
Author(s):  
Zheng-Hua Qian ◽  
Feng Jin ◽  
Tianjian Lu ◽  
Kikuo Kishimoto
Keyword(s):  
Surface Waves ◽  
Layered Structure ◽  
Dielectric Layer ◽  
Functionally Graded ◽  
Functionally Graded Piezoelectric ◽  
Piezoelectric Substrate

Transverse surface waves on a piezoelectric material carrying a functionally graded layer of finite thickness

2007 ◽  
Vol 45 (2-8) ◽  
pp. 455-466 ◽  
Author(s):  
Zhenghua Qian ◽  
Feng Jin ◽  
Zikun Wang ◽  
Kikuo Kishimoto
Keyword(s):  
Surface Waves ◽  
Piezoelectric Material ◽  
Finite Thickness ◽  
Functionally Graded ◽  
Functionally Graded Layer

Analysis of axisymmetric indentation of functionally graded piezoelectric coating or substrate systems under an insulator indenter

2016 ◽  
Vol 28 (1) ◽  
pp. 23-34 ◽  
Author(s):  
Tie-Jun Liu ◽  
Chuanzeng Zhang ◽  
Yue-Sheng Wang
Keyword(s):  
Contact Pressure ◽  
Integral Transform ◽  
Contact Region ◽  
Electrical Potential ◽  
Functionally Graded ◽  
Electromechanical Properties ◽  
Electrical Insulator ◽  
Indentation Problem ◽  
Functionally Graded Piezoelectric ◽  
Piezoelectric Substrate

Axisymmetric indentation problem of a rigid perfect electrical insulator indenter on a functionally graded piezoelectric coating bonded to a piezoelectric substrate is investigated. The electromechanical properties of the functionally graded piezoelectric coating are assumed to vary as an exponential function along the thickness direction. The technique of the Hankel integral transform is applied to reduce the indentation problem to a singular integral equation. The numerical methods are developed and applied to compute the contact pressure for a cylindrical indenter and a spherical indenter. The effects of the material property gradient on the contact pressure, contact region, indentation depth, and electrical potential are analyzed. The numerical results are also obtained for the indentation responses of three different piezoelectric substrates.

SH Surface Waves in a Dielectric Layered Piezoelectric Half Space Loaded with a Liquid Layer

2012 ◽  
Vol 98 (3) ◽  
pp. 378-383 ◽  
Author(s):  
Rong Zhang ◽  
Wenjie Feng
Keyword(s):  
Phase Velocity ◽  
Surface Waves ◽  
Liquid Layer ◽  
Finite Thickness ◽  
Wave Number ◽  
Substrate Structure ◽  
Liquid Layer Thickness ◽  
Shear Horizontal ◽  
Complex Dispersion ◽  
Piezoelectric Substrate

In this paper, we analyze the propagation of shear horizontal surface waves in a dielectric layer/piezoelectric substrate structure covered by a viscous liquid layer of finite thickness. The complex dispersion equation is derived. The numerical results show that the liquid layer thickness and dimensionless real-valued wave number have significant eff ects on the attenuation and phase velocity. In addition, it is found that in general the influence of the liquid layer viscosity on the phase velocity is opposite to that of the liquid layer density.

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