Abstract

Propagation of torsional waves in pre-stressed circular cylinders is investigated within the framework of the piecewise homogeneous body model with the use of the three-dimensional linearized theory of elastic waves in an initially stressed body. It is assumed that the elasticity relations of the materials of the cylinder components are given through the Murnaghan potential. Numerical results related to the torsional wave dispersion and the influence of the mentioned initial stresses, as well as imperfectness paremeter on this dispersion are presented and discussed.

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