Considerable attention has been given to the study of propagation surface waves in order improve efficiency and lifetime acoustic wave devices such as transducers. In this paper, an investigation Rayleigh functionally graded piezoelectric material is presented. The assumed take place a transversely isotropic half-space with properties varying continuously along thickness direction. obtained res...

This paper is devoted to study a problem of plane waves reflection at a traction-free surface of a pre-stressed functionally graded piezoelectric material (FGPM). The effects of initial stress and material gradient on the reflection of plane waves are studied in this paper. Secular equation has been derived analytically for the pre-stressed FGPM half-space and used to show the existence of two ...

In this paper, the influence of the elastic foundation on the free vibration and buckling of thin-walled piezoelectric-based functionally graded materials (FGM) cylindrical shells under combined loadings is investigated. The equations of motion are obtained by using the principle of Hamilton and Maxwell's equations and the Navier's type solution used to solve these equations. Material propertie...

This work presents the study of dynamics and active control a cantilever sigmoid FGM beam with porosities in thermal environment. During this study, we considered Timoshenko beam’s theory combined finite element method (FEM). also comparative an experimental for vibration functionally graded piezoelectric (FGPM) to validate numerical model. Linear quadratic Gaussian (LQG) optimal Kalman filter ...

In this paper, the general solution of steady-state two-dimensional non-axisymmetric mechanical and thermal stresses and mechanical displacements of a hollow thick cylinder made of fluid-saturated functionally graded porous material (FGPM) is presented. The general form of thermal and mechanical boundary conditions is considered on the inside and outside surfaces. A direct method is used to sol...

The present study aims to investigate the analysis of stress, strain, displacement, and electrical potential of a thick hollow cylinder made of FGPM under mechanical and thermal loads. Distribution of mechanical property of material is considered along the shell stick through the power distribution function. Thermal loads have been taken to signify the difference of temperature between outer an...