Bleustein–Gulyaev waves in a finite piezoelectric material loaded with a viscoelastic fluid

Baroudi, Adil El; Pommellec, J. Y. Le

doi:10.1016/j.wavemoti.2020.102695

Cited by 13 publications

(8 citation statements)

References 18 publications

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“…The equation (53) is the exactly same equation obtained by [28] in piezoelectric short case and (54) in the piezoelectric open case. Further if the substrate is taken as a half space i.e., h s  ¥ equations (53)-( 54) become:…”

Section: For Validation Of Resultsmentioning

confidence: 66%

“…Zhang et al [24] have studied the BG wave for liquid sensing applications and has given a theoretical calculation for the phase velocity and associated mechanical and electric field for piezoelectric substrate. Further investigations into BG wave propagation have explored its behaviour in piezoelectric finite layers and half-spaces loaded with viscous and viscoelastic fluids, employing diverse theoretical approaches [25][26][27][28]. Additionally, Li et al [18] have explored the existence of BG wave in MEE composites.…”

Section: Introductionmentioning

confidence: 99%

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Shear horizontal wave dispersion in two phase magneto-electro-elastic material loaded with viscoelastic fluid layer

Singh,

Prasad

2024

Phys. Scr.

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In the present work, an exact analytical approach has used to study dispersive behavior of the shear horizontal (SH) wave in magneto-electro-elastic (MEE) material, loaded with a viscoelastic fluid. Complex dispersion equations are derived in the cases of electric short magnetic short (ESMS), electric short magnetic open (ESMO), electric open magnetic short (EOMS), and electric open magnetic open (EOMO) boundary conditions by solving the equilibrium equations of MEE material and the Stokes equation of viscoelastic fluid. To validate the present outcomes, the MEE material is changed into piezoelectric and piezomagnetic materials by taking some theoretical assumptions and the outcomes are matched with preexisting results. Effect of volume fraction, wave frequency, substrate thickness and thickness of the fluid layer on phase velocity and attenuation of SH wave have studied. This study may find its applications in better understanding of the surface acoustic wave devices incorporated with viscoelastic fluid layer.

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Section: For Validation Of Resultsmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 99%

Shear horizontal wave dispersion in two phase magneto-electro-elastic material loaded with viscoelastic fluid layer

Singh,

Prasad

2024

Phys. Scr.

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“…In the absence of a piezoelectric effect, the B-G waves transform into shear bulk waves. The B-G propagation modes are a key component in liquid detection applications because they do not radiate energy to the adjacent liquid and are sensitive to changes in mechanical, electrical, and liquid properties [24,25].…”

Section: Introductionmentioning

confidence: 99%

“…For the existence of nontrivial solutions of equation(24), the propagation constants k and k must satisfy the condition…”

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confidence: 99%

Bleustein-Gulyaev waves in topological piezoelectric crystals

Rojas Vallecilla,

Granada Echeverri

2024

Mater. Res. Express

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A topological insulator with piezoelectric properties is considered, and an action is proposed to find the equations of motion and the constitutive relations of the generalized coordinates of electrodynamic and elastic origin, paying special attention to the restructuring induced by the topological properties. The results are used to demonstrate that the electromechanical factor of the Bleustein-Gulyaev waves on the surface of a topological piezoelectric crystal of class C6v in contact with vacuum undergoes a second-order correction in the fine structure constant, associated with the topological properties.

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“…They are attractive for liquid sensing as they are shear waves and do not radiate acoustic energy into the liquid bulk and thus, they avoid microstreaming effects and realize a high-quality factor. The viscosity and density of the liquid slow down the wave propagation speed and thus create a detectable phase difference with respect to a reference wave [42][43][44][45][46]. Additionally, BG waves have also been shown to work as gyroscopes [47,48].…”

Section: Introductionmentioning

confidence: 99%

Measurement of the electric permittivity using Bleustein–Gulyaev wave sensor

Elhady

Abdel‐Rahman

2022

J. Micromech. Microeng.

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We present a novel compact electric permittivity sensor that exploits Bleustein-Gulyaev (BG) waves propagating along the surface of shear-poled piezoelectrics. We formulate the dynamic nonlinear electromechanical partial differential equations of motion governing wave propagation under electromagnetically quasistatic conditions. The permittivity of the medium-under-test was found to influence the sensor eigenvalues, enabling the implementation of a frequency-shift permittivity sensor. Solution of the equations of motion demonstrates resonance of the first and third modes when excited using an IDT. We fabricated two sensor prototypes on shear-poled PZT4 and LiNbO3 substrates and used a Vector Network Analyzer to observe the shift in their fundamental natural frequency in the presence of various media-under-test. S11 measurements show deterministic and repeatable shifts in the resonant frequency of the first mode of the LiNbO3 sensor measured at △f1=3.51 MHz for ethanol and △f1=7.49 MHz for deionized water where the bare surface frequency was initially at f1=25.27 MHz.

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Bleustein–Gulyaev waves in a finite piezoelectric material loaded with a viscoelastic fluid

Cited by 13 publications

References 18 publications

Shear horizontal wave dispersion in two phase magneto-electro-elastic material loaded with viscoelastic fluid layer

Shear horizontal wave dispersion in two phase magneto-electro-elastic material loaded with viscoelastic fluid layer

Bleustein-Gulyaev waves in topological piezoelectric crystals

Measurement of the electric permittivity using Bleustein–Gulyaev wave sensor

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