Effect of rotation on the surface wave propagation in magneto-thermoelastic materials with voids

The present paper deals with the propagation of surface waves (Stoneley and Rayleigh waves) in thermoelastic materials with voids. The frequency equations of the Stoneley waves at the bonded and unbonded interfaces between two dissimilar half-spaces of thermoelastic materials with voids are obtained. The numerical values of the determinant for bonded and unbonded interface are calculated for a particular model. We also derived the frequency equation of the Rayleigh wave in thermoelastic materials with voids. The phase velocity and attenuation coefficients have shown that there are two modes of vibration. These two modes are computed and they are depicted graphically. The effect of thermal parameters in these surface waves is discussed.

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“…(2014), Onen and Uz (2015), Goyal et al. (2016), Othman and Hilal (2016), Farhan and Abd-Alla (2018), and Kumar et al. (2018).…”

Section: Introductionmentioning

confidence: 99%

Stoneley and Rayleigh waves in thermoelastic materials with voids

Singh

Tochhawng

2019

Journal of Vibration and Control

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“…Moreover, the upper and lower skin layers are assumed to be of copper materials with the following material properties [34] ρ s = 8.954 × 10 3 Kgm −3 , μ s = 3.86 × 10 10 Pa, (36) while the core layer is of aluminum material with the following material parameters [35]:…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

“…The general governing equation of motion in the presence of a magnetic field force in a homogenous elastic media is considered to be [11,12,[34][35][36]…”

Section: Formulation Of the Problemmentioning

confidence: 99%

“…Furthermore, regarding the influence of some external forces on the propagation of waves in layered media, Jiangong et al examined the propagation of waves in magneto-electro-elastic inhomogeneous hollow cylinders in [28], and the same investigation was carried out by Bin et al [29] on elastic plates. In [30] by Mandi et al, an analytic solution of Love wave travelling in a double layered media placed over an inhomogeneous half-space layer was determined in addition to the dispersion relation analysis, see also [31][32][33][34][35][36] and the references therein for relevant studies.…”

Section: Introductionmentioning

confidence: 99%

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Dispersion of Elastic Waves in an Asymmetric Three-Layered Structure in the Presence of Magnetic and Rotational Effects

Nuruddeen¹,

Nawaz²,

Zia³

2020

PIER M

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The present paper investigates the propagation and dispersion of elastic surface waves in an asymmetric inhomogeneous isotropic three-layered plate in the presence of magnetic field and rotational effects. The skin layers are exposed to an external magnetic field force while the core layer is assumed to be in a rotational frame of reference, which are perfectly bounded together with free-ends conditions. The resultant displacements and shear stresses in the respective layers are derived analytically together with the general dispersion relation. Further, the general dispersion relation is analyzed for some physical cases of interest. Finally, the effects of the magnetic field, rotation, and electric field on the propagation and dispersion of the present model are presented graphically.

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“…Cherechukin et al [4] analyzed the shape memory effect due to magnetic field-induced thermoelastic martensitic transformation in a polycrystalline. The problem of the rotational effect on the propagation of surface waves in magneto-thermoelastic materials with voids was discussed by Farhan et al [5]. Ding et al [6] Found the solution of the inhomogeneity orthotropic cylindrical shell for an axisymmetric plane strain.…”

Section: Introductionmentioning

confidence: 99%

Numerical Solution of a Problem of Thermal Stresses of a Magnetothermoelastic Cylinder with Rotation by Finite-Difference Method

Bayones¹,

Abd-Alla²,

Farhan³

2021

Computers, Materials &Amp; Continua

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The present article deals with the investigation thermal stress of a magnetothermoelastic cylinder subjected to rotation, open or closed circuit, thermal and mechanical boundary conditions. The outer and inner surfaces of the cylinder are subjected to both mechanical and thermal boundary conditions. A The transient coupled thermoelasticity in an infinite cylinder with its base abruptly exposed to a heat flux of a decaying exponential function of time is devised solve by the finite-difference method. The fundamental equations' system is solved by utilizing an implicit finite-difference method. This current method is a second-order accurate in time and space; it is also unconditionally stable. To illustrate the present model's efficiency, we consider a suitable material and acquire the numerical solution of temperature, displacement components, and the components of stresses with time t and through the radial of an infinite cylinder. The results indicate that the effect of coupled thermoelasticity, magnetic field, and rotation on the temperature, stresses, and displacement is quite pronounced. In order to illustrate and verify the analytical developments, the numerical solution of partial differential equations, stress components, displacement components and temperature is carried out and computer simulated results are presented graphically. This study is helpful in the development of piezoelectric devices.

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Effect of rotation on the surface wave propagation in magneto-thermoelastic materials with voids

Cited by 15 publications

References 29 publications

Stoneley and Rayleigh waves in thermoelastic materials with voids

Stoneley and Rayleigh waves in thermoelastic materials with voids

Dispersion of Elastic Waves in an Asymmetric Three-Layered Structure in the Presence of Magnetic and Rotational Effects

Numerical Solution of a Problem of Thermal Stresses of a Magnetothermoelastic Cylinder with Rotation by Finite-Difference Method

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