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Journal ArticleDOI

Plane waves in nonlocal thermoelastic solid with voids

22 Jan 2019-Journal of Thermal Stresses (Taylor & Francis)-Vol. 42, Iss: 5, pp 580-606
TL;DR: In this paper, the propagation of time harmonic plane waves in an infinite nonlocal thermoelastic solid having void pores was studied, and the effects of frequency, void parameters, thermal parameter and nonlocality have been studied numerically on the phase speeds, attenuation coefficients and specific losses of all the propagating waves.
Abstract: This work is concerned with the propagation of time harmonic plane waves in an infinite nonlocal thermoelastic solid having void pores. Three sets of coupled dilatational waves and an independent transverse wave may travel with distinct speeds in the medium. All these waves are found to be dispersive in nature, but the coupled dilatational waves are attenuating, while transverse wave is nonattenuating. Coupled dilatational waves are found to be influenced by the presence of voids, thermal field and elastic nonlocal parameter. While the transverse wave is found to be influenced by the nonlocal parameter, but independent of void and thermal parameters. For a particular model, the effects of frequency, void parameters, thermal parameter and nonlocality have been studied numerically on the phase speeds, attenuation coefficients and specific losses of all the propagating waves. All the computed results obtained have been depicted graphically and explained.
Citations
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01 Jan 2016
TL;DR: The thermoelastic models of continua is universally compatible with any devices to read and is available in the digital library an online access to it is set as public so you can download it instantly.
Abstract: Thank you very much for downloading thermoelastic models of continua. As you may know, people have search numerous times for their chosen readings like this thermoelastic models of continua, but end up in infectious downloads. Rather than reading a good book with a cup of tea in the afternoon, instead they juggled with some infectious bugs inside their laptop. thermoelastic models of continua is available in our digital library an online access to it is set as public so you can download it instantly. Our digital library spans in multiple countries, allowing you to get the most less latency time to download any of our books like this one. Kindly say, the thermoelastic models of continua is universally compatible with any devices to read.

73 citations

Journal ArticleDOI
TL;DR: The main idea of as mentioned in this paper is to extend Eringen's theory of nonlocal elasticity to generalized thermoelasticity with dual-phase-lag and voids.
Abstract: The main idea of the present work is to extend Eringen’s theory of nonlocal elasticity to generalized thermoelasticity with dual-phase-lag and voids. Then we study the propagation of time harmonic ...

65 citations


Cites background or methods or result from "Plane waves in nonlocal thermoelast..."

  • ...reduces to the classical transverse wave speed, a result recently obtained by Sarkar and Tomar [14] in the relevant medium when r 61⁄4 1....

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  • ...Within the framework of Eringen’s theory of nonlocal elasticity [1], the constitutive relations for thermoelastic solid with voids are given by [12,14] 1 e2r2 ð Þsij 1⁄4 sij 1⁄4 2leij þ kekk þ b/ ch ð Þdij; (1) 1 e2r2 ð Þhi 1⁄4 hij 1⁄4 a/;i; (2) 1 e2r2 ð Þg 1⁄4 g 1⁄4 s _ / n/ bekk þmh; (3) 1 e2r2 ð Þqg 1⁄4 qg ð Þ 1⁄4 cekk þ ahþm/; (4)...

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  • ...(28) gives the coupled longitudinal wave velocities for Lord-Shulman thermoelastic model [19] which are recently obtained by Sarkar and Tomar [14]....

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  • ...For this purpose, we have borrowed the values of relevant material parameters from Sarkar and Tomar [14] and Sing et al....

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  • ...This shows that x 1⁄4 xc acts as a cutoff frequency for the existing transverse wave, a conclusion in accordance with that earlier mentioned by Sarkar and Tomar [14]....

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Journal ArticleDOI
TL;DR: In this article, the constitutive relations and the governing equations for nonlocal thermoelastic solid in the presence of diffusion are derived for the free vibration of a thermo-elastic diffusive cloud.
Abstract: In this article, the constitutive relations and the governing equations are derived for nonlocal thermoelastic solid in the presence of diffusion. The free vibration of a thermoelastic diffusive cy...

39 citations

Journal ArticleDOI
TL;DR: In this paper, the generalized thermoelasticity theory based upon the Green and Naghdi model II of thermo-lasticity as well as the Eringen's non-local elasticity model is used to study the propagation of harmonic plane waves in a nonlocal thermelastic medium.

33 citations

Journal ArticleDOI
TL;DR: In this article, the authors investigated the propagation of thermoelastic plane harmonic waves in a non-local thermo-elastic medium using the Green and Naghdi theory.
Abstract: The present article deals with the investigation of the propagation of thermoelastic plane harmonic waves in a nonlocal thermoelastic medium. The Green and Naghdi theory II (without energy ...

28 citations


Cites background from "Plane waves in nonlocal thermoelast..."

  • ...Khurana and Tomar [12] extended the theory of nonlocal elasticity to nonlocal theory of microstretch elasticity and then they investigated wave propagation in nonlocal microstretch solid....

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  • ...Recently, Sarkar and Tomar [20] studied plane waves in nonlocal thermoelastic solid with voids and thermal relaxation time and Mondal et al....

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  • ...Recently, Sarkar and Tomar [20] studied plane waves in nonlocal thermoelastic solid with voids and thermal relaxation time and Mondal et al. [21] reported waves in dual-phase-lag thermoelastic materials with voids based on Eringen’s nonlocal elasticity....

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References
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Journal ArticleDOI
TL;DR: In this article, the authors investigate a model for propagating progressive waves associated with the voids within the framework of a linear theory of porous media, which is of much interest to the building industry.
Abstract: In the present paper, we investigate a model for propagating progressive waves associated with the voids within the framework of a linear theory of porous media. Owing to the use of lighter materials in modern buildings and noise concerns in the environment, such models for progressive waves are of much interest to the building industry. The analysis of such waves is also of interest in acoustic microscopy where the identification of material defects is of paramount importance to the industry and medicine. Our analysis is based on the strong ellipticity of the poroelastic materials. We illustrate the model of progressive wave propagation for isotropic and transversely isotropic porous materials. We also study the propagation of harmonic plane waves in porous materials including the thermal effect.

39 citations


"Plane waves in nonlocal thermoelast..." refers background in this paper

  • ...Other important papers on the dynamical problems on elastic material with voids include Chandrasekharaiah [30,31], Wright [32], Chirita and Ghiba [33,34], Tomar and Ogden [35] including several others....

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Journal ArticleDOI
TL;DR: In this paper, a continuum theory for memory-dependent elastic superconductors is constructed for special cases of nonlinear optics, nonlinear magnetism, conduction, and elastic dielectrics.
Abstract: Constitutive equations are developed for nonlinear (and linear) nonlocal electromagnetic elastic solids that possess continuous memory of past fields. The consequence of the second law of thermodynamics is studied. Phenomenological laws are given for special cases of nonlinear optics, nonlinear magnetism, conduction, and elastic dielectrics. A continuum theory is constructed for memory‐dependent elastic superconductors.

37 citations

Journal ArticleDOI
TL;DR: In this paper, the propagation of Rayleigh surface waves in a rotating semi-infinite solid medium, permeated by an initial magnetic field in the context of linear nonlocal elasticity was investigated.
Abstract: Abstract This paper investigates the propagation of Rayleigh surface waves in a rotating semi-infinite solid medium, permeated by an initial magnetic field in the context of linear nonlocal elasticity. Frequency equations are derived and the combined effect of magnetic field and rotation on Rayleigh wave propagation, based on the linear theory of nonlocal elasticity has been studied. Effects of magnetic field, as well as rotation on Rayleigh wave propagation in a nonlocal medium, have also been analyzed in details as special cases. Numerical calculations, graphs and discussions presented in this paper lead us to some important conclusions. Fourier double integral transform technique has been applied to solve the problem.

37 citations


"Plane waves in nonlocal thermoelast..." refers background in this paper

  • ...To name few such works are Eringen [17], Hajdo and Eringen [18], Eringen [19], Acharya and Mondal [20], Roy, Acharya, and Acharya [21], etc....

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  • ...To name few such works are Eringen [17], Hajdo and Eringen [18], Eringen [19], Acharya and Mondal [20], Roy, Acharya, and Acharya [21], etc. Narendra [22] studied spectral finite element and nonlocal continuum mechanics based formulation for torsional wave propagation in nano-rods....

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Journal ArticleDOI
TL;DR: In this paper, the dispersion relation for Rayleigh-type surface wave has been derived, which is found to be complex in nature, and the variation of phase speed and corresponding attenuation of Rayleigh type wave against frequency, nonlocality and void parameters is computed for a specific model and presented graphically.
Abstract: The present work is concerned with propagation of surface waves in an isotropic homogeneous nonlocal elastic solid half-space with voids. Dispersion relation for Rayleigh-type surface wave has been derived, which is found to be complex in nature. The variation of phase speed and corresponding attenuation of Rayleigh-type wave against frequency, nonlocality and void parameters is computed for a specific model and presented graphically. It is shown that only one mode of Rayleigh-type wave exists, which faces a critical frequency same as the critical frequency of shear wave. The dispersion arises due to the presence of voids and nonlocality in the medium. The particle motion is elliptical and a tilt in the plane of particle motion occurs due to the presence of void parameter ‘τ’ in the medium. In the low frequency range, the variation in ellipticity is due to the presence of voids in the medium. Some particular cases have been deduced from the present formulation.

33 citations


"Plane waves in nonlocal thermoelast..." refers methods in this paper

  • ...Recently, Singh, Kaur, and Tomar [45] studied waves in a nonlocal elastic solid with voids....

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  • ...Effect of c on the variations of (a) V1; (b) V2; (c) V3 with x. Equation (42) is the same equation as earlier obtained by Singh, Kaur, and Tomar [45] for the relevant medium....

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  • ...Reflection and refraction of plane waves at a plane interface between two distinct nonlocal micropolar elastic solids half-spaces has also been studied recently by Khurana and Tomar [26]....

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  • ...Rayleigh wave propagation in nonlocal micropolar elastic half-space and in nonlocal elastic half-space with voids have been studied respectively by Khurana and Tomar [24] and Kaur, Singh, and Tomar [25]....

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  • ...Other important papers on the dynamical problems on elastic material with voids include Chandrasekharaiah [30,31], Wright [32], Chirita and Ghiba [33,34], Tomar and Ogden [35] including several others....

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Journal ArticleDOI
TL;DR: In this paper, a non-local elasticity theory has been incorporated into the classical torsional rod model to capture unique properties of the nanorods under the umbrella of continuum mechanics theory.

33 citations


"Plane waves in nonlocal thermoelast..." refers background in this paper

  • ...Narendra [22] studied spectral finite element and nonlocal continuum mechanics based formulation for torsional wave propagation in nano-rods....

    [...]