Effect of rotation on surface wave propagation in a elastic layer lying over a thermodiffusive elastic half-space having imperfect boundary

• Autorzy: Kumar R. , Chawla V.
• Języki publikacji: EN

Abstrakty

EN

The present investigation deals with the propagation of surface waves at an imperfect boundary between an isotropic elastic layer of finite thickness and a homogenous isotropic thermodiffusive elastic half- space with rotation in the context of generalized theory of thermoelastic diffusion. Lord and Shulman (L-S) theory in which thermal and thermo-mechanical relaxation time is governed by time constant and diffusion relaxation time is governed by other different time constants is selected for the study. The secular equation for surface waves in a compact form is derivied after developing the mathematical model. The phase velocity and attenuation coefficient are obtained for stiffness and then deduced for normal stiffness, tangential stiffness and welded contact. The dispersion curves for these quantities are illustrated to depict the effect of stiffness and thermal relaxation times. The amplitudes of displacements, temperature and concentration are computed at the free plane boundary and depicted graphically. Specific loss of energy is obtained and presented graphically. The effects of rotation are shown for phase velocity, attenuation coefficient and amplitudes of displacements, temperature change and concentration. Some special cases of interest are also deduced and compared with known results.

Słowa kluczowe

EN

wave propagation; isotropic; generalized thermoelasticity diffusion; stiffness; phase velocity; attenuation coefficient; amplitudes; specific loss

PL

propagacji fal; termosprężystość; sztywność; prędkość fazowa; współczynnik tłumienia; amplitudy

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2011
• Tom: Vol. 16, no 1
• Strony: 37--55
• Opis fizyczny: Bibliogr. 33 poz., wykr.

Twórcy

autor

Kumar R.

autor

Chawla V.

• Department of Mathematics, Kurukshetra University Kurukshetra-136119, Haryana, INDIA,

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