Wave Propagation in Functionally Graded Material Bar Due to Collision

2013 ◽  
pp. 1-9
Author(s):  
Tadaharu Adachi ◽  
Masahiro Higuchi
Keyword(s):  
Wave Propagation ◽  
Functionally Graded Material ◽  
Functionally Graded ◽  
Graded Material

Viscoelastic Circumferential SH Wave in Graded Hollow Cylinders

2014 ◽  
Vol 543-547 ◽  
pp. 7-11
Author(s):  
X.D. Yang ◽  
J.G. Yu
Keyword(s):  
Wave Propagation ◽  
Nondestructive Evaluation ◽  
Functionally Graded Material ◽  
Functionally Graded ◽  
Polynomial Method ◽  
Sh Wave ◽  
Graded Material ◽  
Viscoelastic Theory ◽  
Hollow Cylinders ◽  
Dispersion And Attenuation

In this article, circumferential SH wave propagation in functionally graded material (FGM) hollow cylinders is investigated. Based on the Kelvin-Voigt viscoelastic theory, the controlling differential equations in terms of displacements are deduced. By the Legendre polynomial method, the asymptotic solutions are obtained. Through the numerical results, the influences of gradient profile and the influences of the radius to thickness ratio on dispersion and attenuation are illustrated. The work is crucial for guided ultrasonic nondestructive evaluation for graded hollow cylinders.

scholarly journals Vibrations of Three-Layered Cylindrical Shells with FGM Middle Layer Resting on Winkler and Pasternak Foundations

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Abdul Ghafar Shah ◽  
Aalia Ali ◽  
Muhmmad Nawaz Naeem ◽  
Shahid Hussain Arshad
Keyword(s):  
Cylindrical Shell ◽  
Wave Propagation ◽  
Functionally Graded Material ◽  
Middle Layer ◽  
Functionally Graded ◽  
Numerical Results ◽  
Thickness Direction ◽  
Dynamical Equations ◽  
Elastic Foundations ◽  
Graded Material

Vibrations of a cylindrical shell composed of three layers of different materials resting on elastic foundations are studied out. This configuration is formed by three layers of material in thickness direction where the inner and outer layers are of isotropic materials and the middle is of functionally graded material. Love shell dynamical equations are considered to describe the vibration problem. The expressions for moduli of the Winkler and Pasternak foundations are combined with the shell dynamical equations. The wave propagation approach is used to solve the present shell problem. A number of comparisons of numerical results are performed to check the validity and accuracy of the present approach.

The Thermal Study of Wave Propagation in Functionally Graded Material Plates (FGM) Based on Neutral Surface Position

2016 ◽  
Vol 3 (4) ◽  
pp. 202-205
Author(s):  
Boukhari Ahmed ◽  
Boukhelf Fouad ◽  
Benbakhti Abdel Djalil ◽  
Bachir Bouiadjra Mohamed ◽  
Tounsi Abdelouahed ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Functionally Graded Material ◽  
Thermal Study ◽  
Functionally Graded ◽  
Neutral Surface ◽  
Graded Material ◽  
Neutral Surface Position
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