Effect of gradient dielectric coefficient in a functionally graded material (FGM) substrate on the propagation behavior of love waves in an FGM-piezoelectric layered structure

2012 ◽  
Vol 59 (6) ◽  
pp. 1253-1257 ◽  
Author(s):  
Xiaoshan Cao ◽  
Junping Shi ◽  
Feng Jin
Keyword(s):  
Functionally Graded Material ◽  
Layered Structure ◽  
Functionally Graded ◽  
Love Waves ◽  
Propagation Behavior ◽  
Piezoelectric Layered Structure ◽  
Graded Material ◽  
Dielectric Coefficient

Effect of initial stress on Love waves in a piezoelectric structure carrying a functionally graded material layer

Ultrasonics ◽  
2010 ◽  
Vol 50 (1) ◽  
pp. 84-90 ◽  
Author(s):  
Zheng-Hua Qian ◽  
Feng Jin ◽  
Tianjian Lu ◽  
Kikuo Kishimoto ◽  
Sohichi Hirose
Keyword(s):  
Initial Stress ◽  
Functionally Graded Material ◽  
Functionally Graded ◽  
Love Waves ◽  
Material Layer ◽  
Piezoelectric Structure ◽  
Graded Material

Study of the surface wave vibrations in a functionally graded material layered structure: a WKB method

2018 ◽  
Vol 24 (4) ◽  
pp. 1204-1220 ◽  
Author(s):  
Shishir Gupta ◽  
Neelima Bhengra
Keyword(s):  
Material Property ◽  
Functionally Graded Material ◽  
Layered Structure ◽  
Fluid Layer ◽  
Mass Density ◽  
Functionally Graded ◽  
Wkb Method ◽  
Property Variation ◽  
Material Layer ◽  
Graded Material

In this paper, a theoretical investigation is described of the propagation behaviour of Love-type waves in a functionally graded material layered structure. The Wentzel–Kramers–Brillouin (WKB) method was applied to obtain the analytical solution for the functionally graded material layer. The study was carried out to investigate the transference of Love-type waves in a functionally graded material layer bounded by a viscous fluid layer and a highly anisotropic half-space. Two cases were studied, one in which the material property variation of the functionally graded material layer was arbitrary and one in which the material property variation was taken as exponential. A variable separation method was employed to obtain the displacement components in both the viscous liquid and the highly anisotropic medium. Profound effects of material gradient coefficient, viscous coefficient, liquid mass density, initial stress parameter and wavelength on real and imaginary components of phase velocities were established. Some numerical calculations were also made. The considered model facilitates a theoretical foundation and practical application for the development of surface acoustic wave devices.

Material optimization of a cemented tibia tray using functionally graded material

2016 ◽  
Vol 58 (3) ◽  
pp. 260-268 ◽  
Author(s):  
Hassan S. Hedia ◽  
Saad M. Aldousari ◽  
Noha Fouda
Keyword(s):  
Functionally Graded Material ◽  
Functionally Graded ◽  
Material Optimization ◽  
Graded Material
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