Abstract

Present work exhibits an analytical approach for determination of the reflection/transmission coefficients of quasi-longitudinal/shear vertical seismic wave in dual sandwiched isotropic-monoclinic layers between self-reinforced overburdened Earth crust and monoclinic subspace. Closed-form expressions for phase velocity, reflection/transmission coefficients of all the scattered waves are obtained and certain published works are derived as a particular case of the current study. Numerical simulation with lithium niobate type monoclinic material and fiber epoxy resin composites self-reinforced material based on free oscillation frequencies are used to observe the response spectra of relevant parameters on scattered velocities, angles, and coefficients. Findings of present work may be used in modeling the propagation lineaments of quasi-waves rendered through man-made detonation such as those by earth-penetrator weapon (EPW), shallow earthquake impact analysis on the reinforced building designs, exploration of hydrocarbon in the upper crustal region etc.

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