On the propagation of elastic waves in aeolotropic media II. Media of hexagonal symmetry

Abstract

The general analysis presented in part I is here adapted to obtain the velocity, inverse and wave surfaces of a medium of hexagonal symmetry. Values derived from the elastic constants of ( a ) zinc and ( b ) beryl are tabulated and graphs of sections of the surfaces have been drawn. The details of the propagation of elastic plane waves in a single crystal of either substance may be obtained from the data presented.