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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 paper, a linear theory of elastic materials with voids is presented, which differs significantly from classical linear elasticity in that the volume fraction corresponding to the void volume is taken as an independent kinematical variable.
Abstract: A linear theory of elastic materials with voids is presented. This theory differs significantly from classical linear elasticity in that the volume fraction corresponding to the void volume is taken as an independent kinematical variable. Following a discussion of the basic equations, boundary-value problems are formulated, and uniqueness and weak stability are established for the mixed problem. Then, several applications of the theory are considered, including the response to homogeneous deformations, pure bending of a beam, and small-amplitude acoustic waves. In each of these applications, the change in void volume induced by the deformation is determined. In the final section of the paper, the relationship between the theory presented and the effective moduli approach for porous materials is discussed. In the two year period between the submission of this manuscript and the receipt of the page proof, there have been some extensions of the results reported here. In the context of the theory described, the classical pressure vessel problems and the problem of the stress distribution around a circular hole in a field have uniaxial tension have been solved [19,22]. The solution given in the present paper for the pure bending of a beam when the rate effect of the theory is absent is extended to case when the rate effect is present in [21]. The various implications of the rate effect in the void volume deformation are pursued all the subsequent works [19,20,21,22].

804 citations


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

  • ...The nonlinear and linear theory of elastic medium with voids was developed by Cowin and his coworkers [27,28]....

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  • ...Note that in Iesan [37] theory of thermoelastic materials with voids, he did not account the term corresponding to the time rate of /, while this term appears in Cowin and Nunzaito theory [28]....

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Journal ArticleDOI

709 citations


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

  • ...The nonlinear and linear theory of elastic medium with voids was developed by Cowin and his coworkers [27,28]....

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Book
13 Dec 2009
TL;DR: In this paper, the authors present a model of linear hyperbolic thermoelasticity with finite wave speeds and a central equation of the problem of initial-boundary value problems.
Abstract: Preface Introduction 1. Fundamentals of linear thermoelasticity with finite wave speeds 2. Formulations of initial-boundary value problems 3. Existence and uniqueness theorems 4. Domain of influence theorems 5. Convolutional variational principles 6. Central equation of thermoelasticity with finite wave speeds 7. Exact aperiodic-in-time solutions of Green-Lindsay theory 8. Kirchhoff type formulas and integral equations in Green- Lindsay theory 9. Thermoelastic polynomials 10. Moving discontinuity surfaces 11. Time-periodic solutions 12. Physical aspects and applications of hyperbolic thermoelasticity 13. Nonlinear hyperbolic rigid heat conductor of the Coleman type References Index

376 citations

Journal ArticleDOI
TL;DR: In this article, a linear theory of thermoelastic materials with voids is considered, and some general theorems (uniqueness, reciprocal and variational theoremms) are established.
Abstract: A linear theory of thermoelastic materials with voids is considered. First, some general theorems (uniqueness, reciprocal and variational theorems) are established. Then, the acceleration waves and some problems of equilibrium are studied.

361 citations


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

  • ...The theory of thermoelastic solid with void pores developed by Iesan [37] is a nice extension of the Classical Coupled Thermoelasticity theory....

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  • ..., when e 1⁄4 0), the equations of motion given in (9)–(11) reduce to those for a homogeneous isotropic local thermoelastic solid with voids, as earlier presented by Iesan [37] in the absence of quantity s:...

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  • ...Within the linear theory of thermoelastic material with voids [37], the energy equation has the form qT0 _ g 1⁄4 r qþ qR; (6) where R; g and T0 are respectively the extrinsic heat supply, entropy and ambient temperature....

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  • ...Following Iesan [37] and Challamel et al....

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  • ...Note that in Iesan [37] theory of thermoelastic materials with voids, he did not account the term corresponding to the time rate of /, while this term appears in Cowin and Nunzaito theory [28]....

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Journal ArticleDOI
TL;DR: In this paper, the transverse plane wave dispersion in linear, non-local micropolar elastic solids is derived by equating the frequency of the Transverse Acoustical (TA) branch at the end of the Brillouin zone.

278 citations


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

  • ...With the growing popularity of Eringen’s nonlocal elastic model, researchers employed it to various problems of elasticity....

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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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  • ...Field equations and constitutive relations Within the framework of Eringen’s theory of nonlocal elasticity [2], the constitutive relations for thermoelastic solid with voids are given by [50] 1 e2r2ð Þtij ¼ tLij ¼ 2leij xð Þ þ kekk xð Þ þ b/ xð Þ ch xð Þ½ dij; (1) 1 e2r2ð Þhi ¼ hLij ¼ a/;i xð Þ; (2) 1 e2r2ð Þg ¼ gL ¼ s _/ xð Þ n/ xð Þ bekk xð Þ þmh xð Þ; (3) 1 e2r2ð Þqg ¼ qgð ÞL ¼ cekk xð Þ þ ah xð Þ þm/ xð Þ; (4) where the quantities tLij; h L i ; g L and ðqgÞL correspond the local thermoelastic solid with voids....

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  • ...Eringen has extended the concept of nonlocality to various other CONTACT S. K. Tomar sktomar@pu.ac.in; sktomar66@gmail.com Department of Mathematics, Panjab University, Chandigarh 160 014, India....

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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....

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