Publikace na Matematicko-fyzikální fakulta |
2010
Abstrakt
Attenuation angles γ of inhomogeneous plane waves propagating in isotropic or anisotropic, perfectly elastic or viscoelastic media are investigated. In isotropic viscoelastic media, the attenuation angle always varies between 00 and 900.
In anisotropic viscoelastic media, however, the attenuation angle varies in the range , where the boundary attenuation angle γ* may be greater than, equal to, or less than 900. The boundary attenuation angle depends on the viscoelastic moduli of the medium and on the properties of the plane wave under consideration, mainly on the direction of propagation of the wave