Ultrasonic waves in an orthorhombic porous piezo-thermoelastic laminated structure immersed in a fluid

Vashishth, Anil K.; Sukhija, Hema; Gupta, Vishakha

doi:10.1088/0964-1726/25/11/115025

Cited by 6 publications

(3 citation statements)

References 85 publications

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“…Considering the thermal/electric induced deformation in piezoelectric medium, the coupled thermopiezoelectricity theory was proposed [5] and the related physical laws were completed [6]. So far, a series of practical problems have been investigated: transient analysis [7], vibration control [8], cracking problems [9], wave propagation [10], and so forth.…”

Section: Introductionmentioning

confidence: 99%

Generalized Thermopiezoelectricity with Memory‐Dependent Derivative and Transient Thermoelectromechanical Responses Analysis

Sun

2021

Advances in Materials Science and Engineering

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In this paper, a novel generalized thermoelastopiezoelectric model is established by introducing memory-dependent derivative, which might be superior to fractional ones: the form is unique, while the fractional-order theories have various expressions with different authors; it is more intuitionistic for reflecting the memory effect; the physical meanings of the related memory-dependent differential equations are more clear, which are determined by the essence of their definitions; the time-delay and kernel function can be chosen freely based on the necessity of practical applications. The newly constructed model is applied to the transient shock analysis for piezoelectric medium under heating loads. Laplace transformation techniques are employed to solve the governing equations. In numerical implementation, the problem of a semi-infinite piezoelectric medium is considered under the two different cases. The transient responses, that is, temperature, displacement, stress, and electric potential, are illustrated graphically. The parametric studies are performed to analyze the effects of time-delay and kernel function on the transient thermoelastopiezoelectric responses. This work may provide a new approach to explore the transient responses’ behavior for piezoelectric materials serving in nonisothermal environment.

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Section: Introductionmentioning

confidence: 99%

Generalized Thermopiezoelectricity with Memory‐Dependent Derivative and Transient Thermoelectromechanical Responses Analysis

Sun

2021

Advances in Materials Science and Engineering

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“…As a result, when designing suitable devices, the attenuation of the SAW and the leakage of wave energy into the liquid should be taken into account. Researchers have extensively delved into the intricacies of SAW propagation in diverse structures, encompassing elasticity, piezoelectricity, piezomagnetism, and electromagnetism within layered configurations loaded with viscous liquids [19][20][21][22][23]. The BG wave stands out as a promising candidate for liquid sensing due to its unique ability to propagate on the surface of a piezoelectric substrate without the need for an additional guiding layer.…”

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 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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“…Wei et al [26] delved into the analysis of the reflection and refraction behaviours of P waves in the porous thermoelastic medium. Vashishth et al [27] studied ultrasonic waves in porous piezo-thermoelastic structure. Singh et al [28] analysed the reflection and transmission of waves in micropolar piezoelectric half-spaces.…”

Section: Introductionmentioning

confidence: 99%

Reflection and transmission of ultrasonic waves in a layered structure with a functionally graded porous piezoelectric base

Vashishth,

Bareja,

Gupta

2024

Phys. Scr.

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The phenomenon of reflection and transmission of waves offers valuable insights into the internal composition and structural characteristics of materials. This study investigates the reflection and transmission of waves in functionally graded porous piezoelectric materials. These materials, distinguished by their customised electromechanical attributes and gradual property variations, present a promising avenue for optimizing performance across diverse applications, including ultrasonics. The reflection and transmission of ultrasonic waves in a novel structure, consisting of a fluid half-space (FHS) positioned above n porous piezoelectric layers, situated on top of a functionally graded porous piezoelectric half-space (FGPPHS) is studied in this paper. The material properties of FGPPHS are considered to vary along the vertical direction and and resulting equations are solved analytically and numerically. The transfer matrix method is employed to analytically determine the energy ratios and amplitude ratios for reflected and transmitted waves. Numerical computations are performed to study the impacts of frequency, gradation, angle of incidence, and porosity on the energy ratios. Furthermore, the influence of stacking of the number of porous piezoelectric layers above FGPPHS, and the choice of materials (Barium Titanate (BaTiO 3), PZT − 5H, PZT − 7H) in layers and half-space, on the energy ratios are studied. The absolute value of acoustic impedance is plotted for various angles of incidence and porosities. From the graph, it is found that the acoustic impedance can be controlled by adjusting porosity in the structure. This will be helpful in minimizing the energy loss at ceramic-medium interface and improving the mismatch of acoustic impedances at the interfaces of medical ultrasonic imaging devices or underwater sonar detectors, and NDE applications. Further, because of lower acoustic impedance, lower density and stiffness of porous piezoelectric materials, the outcomes of this study will be helpful in designing SAW devices.

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Ultrasonic waves in an orthorhombic porous piezo-thermoelastic laminated structure immersed in a fluid

Cited by 6 publications

References 85 publications

Generalized Thermopiezoelectricity with Memory‐Dependent Derivative and Transient Thermoelectromechanical Responses Analysis

Generalized Thermopiezoelectricity with Memory‐Dependent Derivative and Transient Thermoelectromechanical Responses Analysis

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

Reflection and transmission of ultrasonic waves in a layered structure with a functionally graded porous piezoelectric base

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