Diffraction of a pulsed longitudinal shear wave by a cylindrical cavity in an anisotropic half-space

The problem of the stress concentration on a free tunnel-shaped cavity in an orthotropic half-space with a free flat boundary, on which shear waves in the form of periodic triangular pulses are incident, is solved. The initial problem is reduced to a series of problems of diffraction of harmonic shear waves. The effect of the degree of shear anisotropy on the tangential-stress concentration at the boundary of a cavity with a circular cross section is studied for different positions of the leading edge of the pulse relative to the boundary of the half-space and the cavity.Donetsk. Translated from Teoreticheskaya i Prikladnaya Mekhanika, No. 21, pp. 62–66, 1990.