On wave propagation in a random micropolar generalized thermoelastic medium

• Autorzy: Mitra M. , Bhattacharyya R. K.

Identyfikatory

DOI

10.1515/aoter-2017-0009

• Języki publikacji: EN

Abstrakty

EN

This paper endeavours to study aspects of wave propagation in a random generalized-thermal micropolar elastic medium. The smooth perturbation technique conformable to stochastic differential equations has been employed. Six different types of waves propagate in the random medium. The dispersion equations have been derived. The effects due to random variations of micropolar elastic and generalized thermal parameters have been computed. Randomness causes change of phase speed and attenuation of waves. Attenuation coefficients for high frequency waves have been computed. Second moment properties have been briefly discussed with application to wave propagation in the random micropolar elastic medium. Integrals involving correlation functions have been transformed to radial forms. A special type of generalized thermo-mechanical auto-correlation functions has been used to approximately compute effects of random variations of parameters. Uncoupled problem has been briefly outlined.

Słowa kluczowe

EN

waves; random; micropolar; thermoelastic; propagation

PL

fale; przypadkowy; mikropolar; termoelastyczny; propagacja

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2017
• Tom: Vol. 38, no. 2
• Strony: 21--60
• Opis fizyczny: Bibliogr. 46 poz., wz.

Twórcy

autor

Mitra M.

• Department of Mathematics, Presidency College, Kolkata 700073, India

autor

Bhattacharyya R. K.

• Department of Applied Mathematics, Calcutta University Kolkata 700009, India

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