Polarized shear waves in functionally graded piezoelectric material layer sandwiched between corrugated piezomagnetic layer and elastic substrate

Sahu, Sanjeev A.; Mondal, Sonali; Dewangan, Nidhi

doi:10.1177/1099636217726330

Cited by 35 publications

(12 citation statements)

References 21 publications

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“…The working method of piezoelectric material is direct piezoelectricity [ 26 ]. Polarized charges are generated on the upper and lower surfaces of the piezoelectric material under the influence of stress and strain [ 27 ].…”

Section: Structure and Methodsmentioning

confidence: 99%

Piezoelectric Performance of a Symmetrical Ring-Shaped Piezoelectric Energy Harvester Using PZT-5H under a Temperature Gradient

Zhou

et al. 2020

Micromachines

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With the rapid development of microelectronics technology, low-power electronic sensors have been widely applied in many fields, such as Internet of Things, aerospace, and so on. In this paper, a symmetrical ring-shaped piezoelectric energy harvester (SR-PEH) is designed to provide energy for the sensor to detect the ambient temperature. The finite element method is used by utilizing software COMSOL 5.4, and the electromechanical coupling model of the piezoelectric cantilever is established. The output performance equations are proposed; the microelectromechanical system (MEMS) integration process of the SR-PEH, circuit, and sensor is stated; and the changing trend of the output power density is explained from an energy perspective. In the logarithmic coordinate system, the results indicate that the output voltage and output power are approximately linear with the temperature when the resistance is constant. In addition, the growth rate of the output voltage and output power decreases with an increase of resistance under the condition of constant temperature. In addition, with an increase of temperature, the growth rate of the output power is faster than that of the output voltage. Furthermore, resistance has a more dramatic effect on the output voltage, whereas temperature has a more significant effect on the output power. More importantly, the comparison with the conventional cantilever-shaped piezoelectric energy harvester (CC-PEH) shows that the SR-PEH can improve the output performance and broaden the frequency band.

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Section: Structure and Methodsmentioning

confidence: 99%

Piezoelectric Performance of a Symmetrical Ring-Shaped Piezoelectric Energy Harvester Using PZT-5H under a Temperature Gradient

Zhou

et al. 2020

Micromachines

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“…We consider the total surface stresses of the piezoelectric and piezomagnetic layers are equal at the interface between the two layers. Accordingly, the compatibility condition on the interfaces between the piezoelectric and piezomagnetic materials is [20,42]then the following equations can be obtainedwhere…”

Section: Equations and Derivationsmentioning

confidence: 99%

“…Piezoelectric and piezomagnetic composites are elastic-electric-magnetic coupling materials, which can accomplish the transformation among the mechanical, electrical and magnetical energies. As a result, researches have been devoted to the piezoelectric and piezoelectric/piezomagnetic composites on vibration [17,18], wave propagation [19,20], and fracture [21,22]. Investigations improved that the composites composed of piezoelectric and piezomagnetic layers could display more superior magnetoelectric coupling effect than single multiferroic materials at room temperature [23,24].…”

Section: Introductionmentioning

confidence: 99%

Energy harvesting from a nanopiezoelectric/piezomagnetic sandwich beam with porous properties

Fan

2020

Jnl of Sandwich Structures & Materials

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Piezoelectric/piezomagnetic energy harvester has attracted great interest, which can convert magnetic energy into electric power. However, the challenges are how to provide lasting electric energy to the nanoscale components and avoid the inherent brittleness of the piezoelectric and piezomagnetic materials. Therefore, a nanoporous piezoelectric/piezomagnetic beam with a storage circuit is proposed to be an energy harvester in this paper. The nanoporous beam is treated as a sandwich composite beam with the piezoelectric/piezomagentic core bulks and the surface or interface layers. Based on the surface effect theory and the Boit’s porous elasticity, the governing equations and the analytical solutions of the nanoporous piezoelectric/piezomagnetic energy harvester with the flexural mode are obtained. The numerical calculation points out that the resonant frequency, output power density and the output voltage depend on the surface materials parameters, porosity properties, solid-fluid coupling effects, the geometrical dimensions, as well as the piezoelectric/piezomagnetic materials composition of the structure. The results reveal that the resonant frequency interval can be controlled and the output electric power can be improved by adjusting the materials and geometrical parameters.

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“…Love-type waves in an FGPEM sandwiched between an initially stressed layer and an elastic substrate were investigated by Saroj et al [18]. Sahu et al [19] explored polarized shear waves in an FGPEM layer sandwiched between a corrugated piezomagnetic layer and an elastic substrate. Gupta and Bhengra [20] applied the Wentzel-Kramers-Brillouin method to study surface wave vibrations in an FGM layered structure.…”

Section: Introductionmentioning

confidence: 99%

Analysis of size dependency on Love-type wave propagation in a functionally graded piezoelectric smart material

Sharma

Kumar

2020

Mathematics and Mechanics of Solids

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This study investigates Love-type wave propagation in a layered structure consisting of a functionally graded piezoelectric material (FGPEM) stratum followed by a semi-infinite couple-stress substrate exhibiting microstructural properties. Dispersion relations are obtained for electrically open and short conditions. Possible particular cases are discussed. The dispersion relation is reduced to the classical Love wave equation to validate the results. The influence of microstructural parameters, electromechanical coupling factor, thickness, functional gradedness and material parameters of the FGPEM stratum on the phase velocity of the Love-type wave has been scrutinized and illustrated graphically for electrically open and short conditions. The findings have meaningful practical application in the enhancement of efficiency and performance of sensors and transducers.

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Polarized shear waves in functionally graded piezoelectric material layer sandwiched between corrugated piezomagnetic layer and elastic substrate

Cited by 35 publications

References 21 publications

Piezoelectric Performance of a Symmetrical Ring-Shaped Piezoelectric Energy Harvester Using PZT-5H under a Temperature Gradient

Piezoelectric Performance of a Symmetrical Ring-Shaped Piezoelectric Energy Harvester Using PZT-5H under a Temperature Gradient

Energy harvesting from a nanopiezoelectric/piezomagnetic sandwich beam with porous properties

Analysis of size dependency on Love-type wave propagation in a functionally graded piezoelectric smart material

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