PLANE WAVE PROPAGATION THROUGH A PLANER SLAB

International Journal of Mathematical Modelling & Computations

مقاله 1، دوره 3، 4 (FALL)، فروردین 2013، صفحه 259-273   

نویسنده

Rajneesh Kakar

DIPS POLYTECHNIC COLLEGE Iran, Islamic Republic of PRINCIPAL DIPS POLYTECHNIC

چکیده

An approximation technique is considered for computing transmission and reflection coefficients for plane waves propagating through stratified slabs. The propagation of elastic pulse through a planar slab is derived from first principles using straightforward time-dependent method. The paper ends with calculations of enhancement factor for the elastic plane wave and it is shown that it depends on the velocity ratio of the wave in two different media but not the incident wave form. The result, valid for quite arbitrary incident pulses and quite arbitrary slab inhomogeneities, agrees with that obtained by time-independent methods, but uses more elementary methods
 

کلیدواژه‌ها

elastic waves؛ Inhomogeneity؛ Navier’s equations؛ time-independent methods