Reflection and transmission of waves from a plane interface between viscous liquid and magneto elastic solid half space with voids

• Autorzy: Acharya D. P. , Maji C.
• Języki publikacji: EN

Abstrakty

EN

This paper investigates the propagation of plane waves as well as their reflection and transmission from the plane interface which separates a viscous liquid half space and a magneto elastic solid semi infinite medium containing a distribution of void pores. From the analysis of the propagation of plane waves in a magneto elastic solid medium with voids, it is found that the longitudinal wave in a void solid medium is subject to dispersion of the general wave form. In this case, short wave and long wave approximations have been made. A 'cut of frequency', which depends upon the void parameter, exists below which one of the longitudinal waves cannot propagate at all. Amplitude and energy ratios of various reflected and transmitted waves are presented in each of the four cases when (i) a set of coupled longitudinal waves (ii) a similar set of coupled waves (iii) a transverse wave, propagating through the solid half space (iv) a longitudinal wave propagating through the viscous liquid half space, are made incident at the interface. Numerical computations are made for a specific model and results are presented graphically to highlight the modulations of these ratios due to the variation of incident angle of the incident wave. It is found that the amplitude and energy ratios of various reflected and transmitted waves are functions of angle of incidence and frequency. The effects of viscosity of the liquid, magnetic field as well as void nature of the solid medium on the amplitude and energy ratios have been analyzed from the graphical representations.

Słowa kluczowe

EN

reflection and transmission; magneto elastic solid; viscous liquid; void field; dispersion relations; transverse wave; short wave; long wave; coupled waves; amplitude and energy ratios; reflected and transmitted waves

PL

płyny lepkie; fala poprzeczna; tworzywa termoplastyczne

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2009
• Tom: Vol. 14, no 1
• Strony: 21--54
• Opis fizyczny: Bibliogr. 26 poz., wykr.

Twórcy

autor

Acharya D. P.

autor

Maji C.

• 109/3, Kailash Roy Chowdhury Road Barrackpore, Kolkata - 120, INDIA,

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