Abstract
The Ross-Ungar-Kerwin theory of damping treatment in plates/beams is extended to estimate the loss factors of damping treated structural cable, which is made by introducing some viscoelastic material between the strands and the outer cover. The loss factors for axial and bending deformations are analytically investigated. It is concluded that the maximum magnitude of the axial loss factor, as well as the bending loss factor, for the case of a soft outer cover could be of the order of 10 -2, because even in the bending deformation mode, the bending-induced axial deformation acts as the main source of damping when a comparatively soft outer cover is chosen. For the case of an extremely stiff outer cover, however, the maximum magnitude of the bending loss factor obtained could be of the order of 0·2.
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