TY - JFULL AU - Dmitry D. Zakharov PY - 2009/8/ TI - Surface and Guided Waves in Composites with Nematic Coatings T2 - International Journal of Mathematical and Computational Sciences SP - 479 EP - 483 VL - 3 SN - 1307-6892 UR - https://publications.waset.org/pdf/6797 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 31, 2009 N2 - The theoretical prediction of the acoustical polarization effects in the heterogeneous composites, made of thick elastic solids with thin nematic films, is presented. The numericalanalytical solution to the problem of the different wave propagation exhibits some new physical effects in the low frequency domain: the appearance of the critical frequency and the existence of the narrow transition zone where the wave rapidly changes its speed. The associated wave attenuation is highly perturbed in this zone. We also show the possible appearance of the critical frequencies where the attenuation changes the sign. The numerical results of parametrical analysis are presented and discussed. ER -