View in EDS

Green's function approach to determine the impact of disturbance source on SH-wave regulation in the piezoelectric layer over FGTI substrate.

Saved in:
Bibliographic Details
Title: Green's function approach to determine the impact of disturbance source on SH-wave regulation in the piezoelectric layer over FGTI substrate.
Authors: Mario A., John Stephen1 (AUTHOR) johnstephen.marioa2022@vitstudent.ac.in, Alam, Parvez1 (AUTHOR) alamparvez.amu@gmail.com, Lee, Jaesun2 (AUTHOR) jaesun@changwon.ac.kr, Manam, S.R.3 (AUTHOR) manam@iitm.ac.in
Source: Engineering Computations. 2025, Vol. 42 Issue 3, p1097-1121. 25p.
Subjects: Green's functions, Wave mechanics, Acoustic surface waves, Equations of motion, Borosilicates
Abstract: Purpose: The analysis of horizontally polarized shear wave (SH-wave) into a piezoelectric layer overlying a functionally graded transversely isotropic (FGTI) half-space under the influence of an impulsive point source existing at its interface is the hallmark of this investigation. Design/methodology/approach: FG in the half-space is caused by quadratic variations in the elastic constants and density. The framework of this study also encompasses the use of Green's functions technique and Fourier transforms, non-dimensionalization of the resulting equations of motion and grooved boundary conditions occasioned by the modelled problem. The closed-form dispersion equation of SH-wave has been established with the aid of admissible boundary conditions and the properties of Green's function. Findings: To depict the results numerically, four distinct piezoelectric materials have been considered viz. PZT-5H ceramics, BaTiO3 ceramics, SiO2 glass and borosilicate glass. The study manifests the remarkable impact of parameters, viz. piezoelectric constant, dielectric constant and FG parameters through the aid of numerical examples and graphical demonstrations. It is crucial to state that among the four different types of piezoelectric materials, PZT-5H ceramics have the most prominent effect for all the parameters while borosilicate glass has the least. Originality/value: The originality of this research lies in its novel combination of Green's function methodology with the study of SH-wave regulation in a specific layered material system, offering insights into both fundamental wave mechanics and potential practical applications. In addition, this study also has potential implications in the fabrication and optimization of surface acoustic wave (SAW) devices, Love wave sensors and transducers. [ABSTRACT FROM AUTHOR]
Copyright of Engineering Computations is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:Purpose: The analysis of horizontally polarized shear wave (SH-wave) into a piezoelectric layer overlying a functionally graded transversely isotropic (FGTI) half-space under the influence of an impulsive point source existing at its interface is the hallmark of this investigation. Design/methodology/approach: FG in the half-space is caused by quadratic variations in the elastic constants and density. The framework of this study also encompasses the use of Green's functions technique and Fourier transforms, non-dimensionalization of the resulting equations of motion and grooved boundary conditions occasioned by the modelled problem. The closed-form dispersion equation of SH-wave has been established with the aid of admissible boundary conditions and the properties of Green's function. Findings: To depict the results numerically, four distinct piezoelectric materials have been considered viz. PZT-5H ceramics, BaTiO3 ceramics, SiO2 glass and borosilicate glass. The study manifests the remarkable impact of parameters, viz. piezoelectric constant, dielectric constant and FG parameters through the aid of numerical examples and graphical demonstrations. It is crucial to state that among the four different types of piezoelectric materials, PZT-5H ceramics have the most prominent effect for all the parameters while borosilicate glass has the least. Originality/value: The originality of this research lies in its novel combination of Green's function methodology with the study of SH-wave regulation in a specific layered material system, offering insights into both fundamental wave mechanics and potential practical applications. In addition, this study also has potential implications in the fabrication and optimization of surface acoustic wave (SAW) devices, Love wave sensors and transducers. [ABSTRACT FROM AUTHOR]
ISSN:02644401
DOI:10.1108/EC-07-2024-0626