Analysis of wave scattering in 3-layer piezo composite structure [Pb[ZrxTi1-x]O3-ALN-Pb[ZrxTi1-x]O3]
03 Apr 2021-Mechanics Based Design of Structures and Machines (Taylor & Francis)-Vol. 49, Iss: 3, pp 307-328
TL;DR: In this paper, an analytical model has been considered to study the scattering phenomenon of the quasiplane wave in functionally graded piezoelectric material (FGPM) layer sandwiched between two similar Piezoele components.
Abstract: An analytical model has been considered to study the scattering phenomenon of the quasi-plane wave in functionally graded piezoelectric material (FGPM) layer sandwiched between two similar piezoele...
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TL;DR: In this paper , the authors investigated the propagation characteristics of horizontally polarized shear waves (SH waves) in a composite structure comprised of a Functionally Graded (FG) buffer layer sandwiched between an overlying transversely isotropic Piezo-Fiber-Reinforced Composite (PFRC) material guiding layer and an underlying TS-Poroelastic (PP) half-space.
Abstract: Love wave sensors are highly sensitive devices owing to the concentration of acoustic energy within a few wavelengths of the surface. The basic model of these high-performance devices is layered structures composed of highly sensitive composite and functionally graded materials. Thus the present work aims to establish an analytical framework to investigate the propagation characteristics of horizontally polarized shear waves (SH waves) in a composite structure comprised of a Functionally Graded (FG) buffer layer sandwiched between an overlying transversely isotropic Piezo-Fiber-Reinforced Composite (PFRC) material guiding layer and an underlying transversely isotropic Piezo-Poroelastic (PP) half-space. The motive considering the gradient materials, especially at the interface adjoining the layers, is to avoid the discontinuity of the inter-laminar stress and high local stress fields, which can arise around the edges of the laminates due to material mismatch across the interface. The functional gradient of the buffer layer is configured in terms of volume fractions of the guiding layer and the half-space material. The power series technique is employed to solve the governing equations of the FG-buffer layer. For the propagating SH wave, the dispersion relation relating the wave number with phase velocity through the mechanical and electrical parameters of the PFRC and PP materials, the gradient parameter, and the widths of the guiding and buffer layer is presented for the electrically open (EO) as well as electrically shorted (ES) conditions. Furthermore, mass loading sensitivity is analyzed by coating a fine layer on the free surface of the structure. The obtained results on the dispersion relations are compared and found to be in well-agreement with some of the outcomes available in the extant literature, thus validating the present study. To graphically delineate the impact of all influencing parameters, a layered structure of ZnO-Epoxy (PFRC)/ FG-buffer Layer/PZT-1 (PP) is considered. Also, the mass loading sensitivity is graphically illustrated for the coating of a fine layer of SiO2 on the free surface. The present study may be applied for a myriad of engineering applications like manufacturing and optimizing sensors, actuators, transducers, etc. The obtained results are specifically useful for developing and enhancing the performance of surface acoustic wave (SAW) devices/Love wave sensors.
12 citations
TL;DR: In this article, a theoretical investigation has been carried out to analyze the propagation of shear horizontal surface waves (SH-waves) in a structure consisting of a functionally graded p...
Abstract: In the present article, a theoretical investigation has been carried out to analyze the propagation of shear horizontal surface waves (SH-waves) in a structure consisting of a functionally graded p...
8 citations
TL;DR: In this article, the field equations of isotropic dielectrics with centrosymmetric microstructures are specialized to take into account the effects of micro-inertia, flexoelectricity, and non-uniform strain.
Abstract: Taking into consideration the effects of micro-inertia, flexoelectricity, and non-uniform strain, the field equations of isotropic dielectrics with centrosymmetric microstructures are specialized f...
7 citations
TL;DR: In this article, the reflection and transmission properties of quasi-longitudinal plane (QP) waves in an AlN-ZnO laminated composite structure were investigated and the algebraic equations were obtained by imposing boundary conditions on the common interface of the laminated structure.
Abstract: We examine the reflection and transmission phenomena of quasi-longitudinal plane (QP) waves in an AlN-ZnO laminated composite structure. The structure is designed under the influence of the initial stresses in which one carrier piezoelectric semiconductor (PSC) half-space is in welded contact with another PSC half-space. The secular equations in the transversely isotropic PSC material are derived from the general dynamic equation, taking the initial stresses into consideration. It is shown that the incident quasi-longitudinal wave (QP-mode) at the interface generates four types of reflected and transmitted waves, namely, QP wave, quasi-transverse (QSV) wave, electric-acoustic (EA) wave, and carrier plane (CP) wave. The algebraic equations are obtained by imposing the boundary conditions on the common interface of the laminated structure. Reflection and transmission coefficients of waves are obtained by implementing Cramer’s rule. Profound impacts of the initial stresses and exterior electric biasing field on the reflection and transmission coefficients of waves are investigated and presented graphically.
5 citations
TL;DR: In this article , the reflection and transmission of waves at an interface of piezoelectric (ALN and PZT-5T) half-spaces with microstructures were investigated.
2 citations
References
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TL;DR: In this paper, an asymptotic approximation solution for the propagation of Love-type surface waves in a smart composite structure involving functionally graded piezoelectric material (FGPM) was proposed.
Abstract: This paper proposes an asymptotic approximation solution for the propagation of Love-type surface waves in a smart composite structure involving functionally graded piezoelectric material (FGPM). T...
15 citations
TL;DR: The rotation in the governing pyroelectric equation is characterized by considering the Coriolis and centrifugal accelerations and the initial stresses are considered by modifying the elasticity tensor.
15 citations
TL;DR: In this article, the fundamental equations of the space problem for transversely isotropy piezoelectric/piezomagnetic and elastic media are established in terms of 3-D elastic displacement, electric potential, and magnetism potential functions.
Abstract: In this paper, fundamental equations of the space problem for transversely isotropy piezoelectric/piezomagnetic and elastic media are established. The system of govering partial differential equations is expressed in terms of 3-D elastic displacement, electric potential, and magnetism potential functions. By means of the defined potential function, the general solution for 3-D transversely isotropic magneto-electro-elastic is derived. As an application of the general solution, the piezoelectric/piezomagnetic, problem acted on by a point force at the origin directed along the z-axis, and a point charge and a point electric current at the origin is solved. Also, explicit expressions of the function of the elastic displacement, stress, electric displacement, electric potential, magnetic induction, and magnetism potential are obtained. #Communicated by I. Elishakoff.
11 citations
TL;DR: In this paper, the reflection and refraction of quasi-longitudinal (qP) waves at the welded interface between rotating piezoelectric and FGPM half-spaces was investigated.
Abstract: The present paper aims to investigate the reflection and refraction of quasi-longitudinal (qP) waves at the welded interface between rotating piezoelectric and FGPM half-spaces. The equatio...
7 citations
Journal Article•
TL;DR: In this paper, the effects of initial stress and material gradient on the reflection of plane waves are studied in a half-space of a pre-stressed functionally graded piezoelectric material (FGPM).
Abstract: 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 coupled waves namely and Continuity condition of stress, electrical potential and electrical displacement at traction free surface is used to obtain the reflection coefficient of and waves. Results of the problem are shown graphically and effects of initial stress and material gradient are discussed for a particular case of Lithium niobate material.
6 citations