Plane waves in thermo-viscoelastic material with voids under different theories of thermoelasticity

• Autorzy: Tomar S. K. , Goyal N. , Szekeres A.

Identyfikatory

DOI

10.2478/ijame-2019-0043

• Języki publikacji: EN

Abstrakty

EN

Propagation of time harmonic plane waves in an infinite thermo-viscoelastic material with voids has been investigated within the context of different theories of thermoelasticity. The equations of motion developed by Iesan [1] have been extended to incorporate the Lord-Shulman theory (LST) and Green-Lindsay theory (GLT) of thermoelasticity. It has been shown that there exist three coupled dilatational waves and an uncoupled shear wave propagating with distinct speeds. The presence of thermal, viscosity and voids parameters is responsible for the coupling among dilatational waves. All the existing waves are found to be dispersive and attenuated in nature. The phase speeds and attenuation coefficients of propagating waves are computed numerically for a copper material and compared under different theories of thermo-elasticity. The expressions of energies carried along each wave have also been derived. All the computed numerical results have been depicted through graphs. It is found that the influence of CT and GLT is almost same on wave propagation, while LST influences the wave propagation differently.

Słowa kluczowe

EN

thermo-visco-elasticity; voids; waves; phase speed; attenuation; energy

PL

termolepkosprężystość; fala; prędkość fazowa; energia

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2019
• Tom: Vol. 24, no. 3
• Strony: 691--708
• Opis fizyczny: Bibliogr. 42 poz., tab., wykr.

Twórcy

autor

Tomar S. K.

• Department of Mathematics, Panjab University Chandigarh - 160 014, INDIA

autor

Goyal N.

• Department of Mathematics, Panjab University Chandigarh - 160 014, INDIA

autor

Szekeres A.

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)