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In the present paper, analysis and numerical results are presented for free axisymmetric vibrations of circular sandwich plate with isotropic core and polar orthotropic face sheets employing harmonic differential quadrature (HDQ) method. The thickness of the core is assumed to vary quadratically in the radial direction and the face sheets are treated as membranes of constant thickness. The effect...
In this paper, the free axisymmetric vibrations of circular sandwich plates with relatively stiff core of parabolically varying thickness have been presented on the basis of first order shear deformation theory. For the present model, the plate is assumed to be symmetric with respect to the middle surface. The facings are taken of the same material and of the same thickness. Due to parabolic variation...
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