ANALYTICAL MODEL FOR THE SCATTERING OF AN OBLIQUELY INCIDENT PLANE SHEAR WAVE FROM A CYLINDRICAL CAVITY.

A 3D analytical model was derived for the propagation and scattering of an obliquely incident plane shear wave from a cylindrical cavity. The generation and decay of the spiral creeping waves was found to be present for typical angled-beam shear wave inspections of fastener sites although dependent on the angle of incidence and polarization. An extension of the model using an image method was derived to study a special case of plane wave scattering by a truncated cylinder with an infinite crack. [ABSTRACT FROM AUTHOR]