Surface and edge waves in solids with nematic coating

Abstract

Localized waves near the stress-free surface or the free edge of a solid with a thin nematic coating are investigated. The nematic media is described using an approximate linear low-frequency model. Being a non-traditional material this medium possesses a strong anisotropy of elastic and viscous properties and some additional freedom caused by the long polymer chain and molecules. As shown, the specific wave phenomena, observed earlier in the infinite nematic media, in the case of a coating with finite thickness lead to the appearance of the quasi-resonance zones where the phase speed and the attenuation of waves in heterogeneous composites are strongly perturbed.

Effects of director orientation on the vibration of anisotropic nematic elastomer plates under various boundary conditions

“…Singh [18] obtained reflection coefficients of homogeneous elastic waves from a free surface of nematic elastomer half-space. And Zakharov [19] investigated the wave propagation in composite models which are made of traditional elastic material with nematic coating.…”

Effects of director rotation relaxation on viscoelastic wave dispersion in nematic elastomer beams

“…Singh [23] obtained reflection coefficients of homogeneous elastic waves from a free surface of NE half-space. Considering a combination of traditional elastic material with thin NE coating, the phase velocities and attenuation of waves in these composite models have been studied by Zakharov and Kaptsov [24] and Zakharov [25,26]. Yang et al [27] investigated Rayleigh wave propagation in nematic elastomer half-space.…”