Acoustoelasticity in a weakly anisotropic monoclinic elastic material
The acoustoelasticity in a stressed monoclinic elastic material is analyzed theoretically. It is assumed that the material has weak anisotropy, such that the second-order elastic constants differ slightly from those of an isotropic material and the third-order elastic constants retain general monoclinic anisotropy. The propagation velocities, the polarization directions and the acoustoelastic effects for principal longitudinal and transverse waves are obtained and presented as functions of the elastic constants, principal stresses and directions of principal axes of stress. The coefficients appearing in the formulas are tabulated for Laue groups.
second-order elastic constants differ slightly from those of an isotropic material
third-order elastic constants retain general monoclinic anisotropy
principal longitudinal and transverse waves
scientific article; zbMATH DE number 3913805