Abstract
AbstractThe governing differential equations of motion for flexural vibrations of a doubly curved sandwich panel consisting of stiff elastic face layers sandwiching soft viscoelastic core have been derived, considering extension and bending deformations of the face layers and shear deformations of the core, using variational principles. Solution for panel with simply supported edges is assumed in series summation form and the correspondence principle of linear viscoelasticity is applied for evaluation of resonance frequencies and associated system loss factors. The effects of variations of geometrical and material parameters on the resonance frequencies and associated system loss factors are reported.
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