Juhi Baroi

Bio: Juhi Baroi is an academic researcher from Indian Institutes of Technology. The author has contributed to research in topics: Dispersion relation & Phase velocity. The author has an hindex of 5, co-authored 9 publications receiving 52 citations. Previous affiliations of Juhi Baroi include Indian Institute of Technology Dhanbad.

Analysis of different boundary types on wave velocity in bedded piezo-structure with flexoelectric effect

Abstract: This research article manifests the influence of mechanically and dielectrically conducting interface on the characteristics of surface wave transmission in a piezo-structure with flexoelectric effect at the nanoscale level. The considered model consists a piezoelectric (Lithium Niobate (LiNbO3)) layer resting on piezoelectric (lead zirconate titanate (PZT-5H)) half-space. The imperfect interface includes mechanically compliment and dielectrically weakly conducting interface, mechanically compliment and dielectrically highly conducting interface, mechanically debond interface and dielectrically insulating interface. Complex dispersion relations are obtained analytically in determinant form corresponding to electrically open and short circuit cases. A numerical example has been provided to highlight the influences of different affecting parameters (like layer thickness, flexoelectric parameter, degree of dielectric and mechanically imperfect interface) on the phase velocity curve. Salient outcomes of the present study have been shown graphically.

Analysis of surface wave behavior in corrugated piezomagnetic layer resting on inhomogeneous half-space

Abstract: This paper deals with propagation of Love type waves in a Piezomagnetic layer with corrugated boundaries overlying an inhomogeneous half-space. Inhomogeneity of elastic half-space is caused...

Analysis of wave scattering in 3-layer piezo composite structure [Pb[ZrxTi1-x]O3-ALN-Pb[ZrxTi1-x]O3]

Abstract: An analytical model has been considered to study the scattering phenomenon of the quasi-plane wave in functionally graded piezoelectric material (FGPM) layer sandwiched between two similar piezoele...

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

Abstract: 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 utilize...

Comparative study of the flexoelectricity effect with a highly/weakly interface in distinct piezoelectric materials (PZT-2, PZT-4, PZT-5H, LiNbO3, BaTiO3)

Abstract: A comparative study of Love-type wave vibrations in a distinct piezoelectric (PE) material thin film with a highly and weakly dielectric interface with an elastic pre-stressed elastic plate is inve...

Approximation of surface wave velocity in smart composite structure using Wentzel–Kramers–Brillouin method:

Abstract: In mathematical physics, the Wentzel–Kramers–Brillouin approximation or Wentzel–Kramers–Brillouin method is a technique for finding approximate solutions to linear differential equations with spati...

Interfacial imperfection study in pres-stressed rotating multiferroic cylindrical tube with wave vibration analytical approach

Abstract: In the present paper, two distinct multiferroic composites are taken into account, i.e., PE (piezoelectric)/PM (piezomagnetic). An analytical technique is applied to study the shear horizontal (SH) wave propagation in a layered pre-stressed rotating cylindrical tube structure consisting of a PE material layer which is wrapped on PM material having an imperfect interface. It is assumed that consider interface is mechanical, electrically and magnetically damaged. Dispersion relations are obtained for electrical-magnetic open/short boundary conditions. Distinct graphs are drawn (numerically) to exhibit the influence of parameters like rotation, initial stress and imperfect parameters (mechanical, electrical and magnetic) on phase velocity. Parametric results on the phase velocities yield a significant conclusion of which some are: (a) Performance has Piezo-composites have a great impact on phase velocity. (b) The mechanical imperfection affects the more on phase velocity along with the combination of thickness ratio and wave number in respect to electrical -magneto imperfection (c) The PE/PM stiffening can monotonically increase the speed of phase.

An asymptotic approximation of Love wave frequency in a piezo-composite structure: WKB approach

Abstract: This paper proposes an asymptotic approximation solution for the propagation of Love-type surface waves in a smart composite structure involving functionally graded piezoelectric material (FGPM). T...

Lamb wave imaging with actuator network for damage quantification in aluminum plate structures

Abstract: Lamb waves have been widely used for damage detection on plate-like structures. However, there are still considerable interests on quantifying damage with complex profile. In this article, quantifi...