Wave propagation in layered piezoelectric structures

1998 ◽  
Vol 83 (9) ◽  
pp. 4652-4659 ◽  
Author(s):  
A. A. Mesquida ◽  
J. A. Otero ◽  
R. R. Ramos ◽  
F. Comas
Keyword(s):  
Wave Propagation ◽  
Piezoelectric Structures

Elastic wave propagation in metamaterial rods with periodic shunted piezo-patches

2021 ◽  
Vol 263 (2) ◽  
pp. 4303-4311
Author(s):  
Edson J.P. de Miranda ◽  
Edilson D. Nobrega ◽  
Leopoldo P.R. de Oliveira ◽  
José M.C. Dos Santos
Keyword(s):  
Wave Propagation ◽  
Elastic Wave ◽  
Wave Attenuation ◽  
Periodic Structures ◽  
Band Gaps ◽  
Low Frequencies ◽  
Periodic Arrays ◽  
Extended Plane ◽  
Elastic Metamaterials ◽  
Piezoelectric Structures

The wave propagation attenuation in low frequencies by using piezoelectric elastic metamaterials has been developed in recent years. These piezoelectric structures exhibit abnormal properties, different from those found in nature, through the artificial design of the topology or exploring the shunt circuit parameters. In this study, the wave propagation in a 1-D elastic metamaterial rod with periodic arrays of shunted piezo-patches is investigated. This piezoelectric metamaterial rod is capable of filtering the propagation of longitudinal elastic waves over a specified range of frequency, called band gaps. The complex dispersion diagrams are obtained by the extended plane wave expansion (EPWE) and wave finite element (WFE) approaches. The comparison between these methods shows good agreement. The Bragg-type and locally resonant band gaps are opened up. The shunt circuits influence significantly the propagating and the evanescent modes. The results can be used for elastic wave attenuation using piezoelectric periodic structures.

In-plane elastic wave propagation in nanoscale periodic layered piezoelectric structures

2018 ◽  
Vol 142-143 ◽  
pp. 276-288 ◽  
Author(s):  
Dong-Jia Yan ◽  
A-Li Chen ◽  
Yue-Sheng Wang ◽  
Chuanzeng Zhang ◽  
Mikhail Golub
Keyword(s):  
Wave Propagation ◽  
Elastic Wave ◽  
Elastic Wave Propagation ◽  
Piezoelectric Structures

Modeling of the influence of a prestress gradient on guided wave propagation in piezoelectric structures

2006 ◽  
Vol 120 (4) ◽  
pp. 1964-1975 ◽  
Author(s):  
Mickaël Lematre ◽  
Guy Feuillard ◽  
Emmanuel Le Clézio ◽  
Marc Lethiecq
Keyword(s):  
Wave Propagation ◽  
Guided Wave ◽  
Guided Wave Propagation ◽  
Piezoelectric Structures

scholarly journals Peculiarities of the Acoustic Wave Propagation in Diamond-Based Multilayer Piezoelectric Structures as “Me1/(Al,Sc)N/Me2/(100) Diamond/Me3” and “Me1/AlN/Me2/(100) Diamond/Me3” under Metal Thin-Film Deposition

Electronics ◽  
2022 ◽  
Vol 11 (2) ◽  
pp. 176
Author(s):  
Gennady Kvashnin ◽  
Boris Sorokin ◽  
Nikita Asafiev ◽  
Viacheslav Prokhorov ◽  
Andrei Sotnikov
Keyword(s):  
Wave Propagation ◽  
Acoustic Wave ◽  
Quality Factor ◽  
Metal Layer ◽  
Thin Film Deposition ◽  
Acoustic Resonator ◽  
Film Deposition ◽  
Experimental Results ◽  
Acoustic Wave Propagation ◽  
Piezoelectric Structures

New theoretical and experimental results of microwave acoustic wave propagation in diamond-based multilayer piezoelectric structures (MPS) as “Me1/(Al,Sc)N/Me2/(100) diamond/Me3” and “Me1/AlN/Me2/(100) diamond/Me3” under three metal film depositions, including the change in the quality factor Q as a result of Me3 impact, were obtained. Further development of our earlier studies was motivated by the necessity of creating a sensor model based on the above fifth layered MPS and its in-depth study using the finite element method (FEM). Experimental results on the change in operational checkpoint frequencies and quality factors under the effect of film deposition are in satisfactory accordance with FEM data. The relatively small decrease in the quality factor of diamond-based high overtone bulk acoustic resonator (HBAR) under the metal layer effect observed in a wide microwave band could be qualified as an important result. Changes in operational resonant frequencies vs. film thickness were found to have sufficient distinctions. This fact can be quite explained in terms of the difference between acoustic impedances of diamond and deposited metal films.

Love wave propagation in piezoelectric structures bonded with conductive polymer films

Ultrasonics ◽  
2022 ◽  
Vol 118 ◽  
pp. 106559
Author(s):  
Kunpeng Chen ◽  
Zhi Wu ◽  
Yuan Jin ◽  
Jianying Hu ◽  
Jianke Du ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Polymer Films ◽  
Love Wave ◽  
Conductive Polymer ◽  
Piezoelectric Structures

scholarly journals The Effect of Micro-Inertia and Flexoelectricity on Love Wave Propagation in Layered Piezoelectric Structures

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2270
Author(s):  
Olha Hrytsyna ◽  
Jan Sladek ◽  
Vladimir Sladek
Keyword(s):  
Wave Propagation ◽  
Phase Velocity ◽  
Love Wave ◽  
Short Circuit ◽  
Open Circuit ◽  
Love Waves ◽  
Inertia Effect ◽  
Wave Phase Velocity ◽  
Piezoelectric Structure ◽  
Piezoelectric Structures

The non-classical linear governing equations of strain gradient piezoelectricity with micro-inertia effect are used to investigate Love wave propagation in a layered piezoelectric structure. The influence of flexoelectricity and micro-inertia effect on the phase wave velocity in a thin homogeneous flexoelectric layer deposited on a piezoelectric substrate is investigated. The dispersion relation for Love waves is obtained. The phase velocity is numerically calculated and graphically illustrated for the electric open-circuit and short-circuit conditions and for distinct material properties of the layer and substrate. The influence of direct flexoelectricity, micro-inertia effect, as well as the layer thickness on Love wave propagation is studied individually. It is found that flexoelectricity increases the Love-wave phase velocity, while the micro-inertia effect reduces its value. These effects become more significant for Love waves with shorter wavelengths and small guiding layer thicknesses.

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