Extensional Effects in Constrained Viscoelastic Layer Damping
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SummaryThe vibration damping in unsymmetrical, multi-layer beams is obtained by the combined effects of extensional and shear stresses in the viscoelastic layer. The shear stress distribution is not constant across such a layer, although previous work has ignored this. The error in an estimate based on the previous work of the overall loss factor can be large, in particular for the lower resonant modes of long beams with a stiff damping layer.
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2003 ◽
Vol 125
(5)
◽
pp. 628-638
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2021 ◽
2021 ◽