Dispersion relations for SH waves propagation in a porous piezoelectric (PZT–PVDF) composite structure

Gaur, Anshu; Rana, Dinesh Singh

doi:10.1007/s00707-015-1443-y

Cited by 24 publications

(4 citation statements)

References 33 publications

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“…Effects of the filled fluid on the mechanical characteristics of the porous PE materials have been investigated both theoretically and experimentally, based on which the constitutive relations of porous PE materials were given [27,28]. Vashishth and Gupta [21,29], Gaur and Rana [30], and Wang [31] discussed the definition and effect of the pore size on dynamic characteristics of PE materials. Inspired by the development of nanoscience and technology, research works on porous materials and structures have been extended to nanoscale.…”

Section: Introductionmentioning

confidence: 99%

Modeling of an energy harvester with porous piezoelectric/piezomagnetic nanocomposite structure

Fan

2022

Mathematics and Mechanics of Solids

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Micro-energy harvesters are attracting more and more attention due to the demand of the miniaturization and the self-power for the electrical devices. A three-layered porous piezoelectric (PE)/piezomagnetic (PM) energy harvester at the nanoscale is modeled in this paper. The layered PE/PM structure works in the magnetic field; the electrical power can be obtained from the PE layer due to the magnetostriction of the PM layers. Based on the surface elasticity and Boit’s porous theory, the governing equations and the analytical expressions of the harvester with the thickness-shear mode are derived. The numerical analysis indicates that the electrical energy capture capability of the porous PE/PM energy harvester is much superior to its nonporous alternative. Then, the influences of the porous properties, the surface effects, and the constitution of the PE/PM materials on the energy capture performance are discussed. The results indicate that the nano PE/PM energy harvester with pores can be controlled and optimized by improving the porous, surface, and geometrical parameters.

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Section: Introductionmentioning

confidence: 99%

Modeling of an energy harvester with porous piezoelectric/piezomagnetic nanocomposite structure

Fan

2022

Mathematics and Mechanics of Solids

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“…The piezoelectric effect depends on various parameters of the material such as elastic constant, porosity, density, and so on. Variation in porosity can control the acoustic impedance significantly (Gaur and Rana, 2015; Sharma, 2010; Vashishth and Gupta, 2009). By varying the porosity in piezoelectric material many problems like the rate of failure, the difference of impedance of piezo-composite device can be fixed accordingly.…”

Section: Introductionmentioning

confidence: 99%

Dispersion of polarized shear waves in viscous liquid over a porous piezoelectric substrate

Baroi

Sahu

Singh

2018

Journal of Intelligent Material Systems and Structures

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This article aims to study the propagation of polarized shear horizontal waves in viscous liquid layer resting over a porous piezoelectric half-space. An analytical solution is proposed using the separation of variables method. The dispersion relation is obtained using the proper boundary conditions for both electrically open and short cases in determinant form. The numerical example and graphical representation are provided in support of the findings. Dynamic response of affecting parameters (e.g. layer’s width, mass density, piezoelectric constant, dielectric constant, viscous coefficient, and dielectric coupling between the two phases of the porous aggregate) has been presented through graphs. It is observed that the phase velocity of considered wave remarkably affected by these parameters. Moreover, obtained result is matched with the existing result. Findings may contribute significantly toward optimization of surface acoustic wave devices and other liquid sensors. Moreover, this study may be utilized to frame a theoretical model for the problems of shear horizontal wave propagation in composite structures, involving piezoelectric medium.

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“…There are many works about PZT and its applications, in addition, some scientist studied composite PZT material using Polyvinylidenefluoride (PVDF) polymer materials and investigated their electromechanical properties [5][6][7][8][9][10]. PZT and PVDF composite materials show different electromechanical feautres when it's evaluated together as compared to individual [11,12].…”

Section: Introductionmentioning

confidence: 99%

The Fabrication of Local Piezoelectric Sensors Using Hydraulic Pressing System Based on PLC

Paralı¹,

Şabikoğlu²

2017

Celal Bayar Üniversitesi Fen Bilimleri Dergisi

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In this study, the local PZT-PVDF composite sensors are produced. The PLC based hydraulic pressure system (250kgF) is as specially designed and fabricated to produce these sensors. The composite sensors are threated under pooling condition in silicon oil at 30 minutes, 120 o C. Frequency-voltage charactrestics of the piezoelectric sensor that integrated on vibration measurement system are defined, in addition d33 (piezoelectric coefficient), capacitance (C), and Qm (mechanical quality factor) values are determined. It is seen that, fabricated these sensors have 2.5 to 3.7 Vpp (pick to pick) voltage at 10Hz resonance frequency. d33 and Qm values of the mentioned sensors are characterized as 10.5-8.6 , 3.7-2.5, respectively. In lower frequency, these sensors which have maximum 3.7 Vpp voltage may use as strain sensor, vibration sensor, atomic force microscope cantilever piezoelectric sensor, etc. For the first time, the local piezoelectric sensors are fabricated, and PLC based hydraulic pressure system is designed to produce them in Turkey.

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Dispersion relations for SH waves propagation in a porous piezoelectric (PZT–PVDF) composite structure

Cited by 24 publications

References 33 publications

Modeling of an energy harvester with porous piezoelectric/piezomagnetic nanocomposite structure

Modeling of an energy harvester with porous piezoelectric/piezomagnetic nanocomposite structure

Dispersion of polarized shear waves in viscous liquid over a porous piezoelectric substrate

The Fabrication of Local Piezoelectric Sensors Using Hydraulic Pressing System Based on PLC

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