SHUVALOV, A.L. and KRYLOV, V.V., 2000. Localised vibration modes in free anisotropic wedges. Journal of the Acoustical Society of America, 107 (1), pp.657-660.
Propagation of flexural localized vibration modes along edges of anisotropic wedges is considered
in the framework of the geometrical-acoustics approach. Its application allows for straightforward
evaluation of the wedge-mode velocities in the general case of arbitrary elastic anisotropy. The
velocities depend on the wedge apex angle and on the mode number in the same way as in the
isotropic case, but there appears to be additional dependence on elastic coefficients. The velocities
in tetragonal wedges ~with the midplane orthogonal to the four-fold axis! and in ‘‘weakly’’
monoclinic wedges are explicitly calculated and analyzed. Bounds of the wedge-wave velocity
variation in tetragonal materials are established.