VISCOSITY EFFECT ON REFLECTION AND TRANSMISSION COEFFICIENTS BETWEEN TWO MICROPOLAR VISCOTHERMOELASTIC HALF SPACES WITH THREE-PHASE-LAGS
Journal: International Journal of Engineering Sciences & Research Technology (IJESRT) (Vol.6, No. 11)Publication Date: 2017-11-30
Authors : B. Kumar R. Kumar; S. Kaushal;
Page : 51-71
Keywords : Micropolar viscothermoelasticity; Three-phase-lagthermoelasticity; Amplitude ratios; Reflection; Transmission;
Abstract
The present investigation is concerned with reflection and transmission of plane waves at an interface between two micropolar viscothermoelastic half spaces with different micropolarity and viscoelastic properties. The three-phase-lags theory of thermoelasticity developed by Roychoudhuri[12] is used to study the phenomena. The reflection and transmission coefficients of longitudinal displacement wave (LD-wave), thermal wave (Twave) and two coupled transverse displacement and microrotational waves (CD-I wave and CD-II wave) have been derived for different incident waves. The amplitude ratios of different reflected and transmitted waves with angle of incidence are obtained for different theories of viscothermoelasticity i.e. three-phase-lags model, dualphase-lags model and GN typeIII model. The Viscosity effect on the amplitude ratio are depicted graphically
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Last modified: 2017-11-08 21:14:20