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Abstract
A theoretical study of the dynamic stability of simply supported sandwich plates and circular cylindrical sandwich panels with dissimilar face-sheets and orthotropic cores is presented. The uniformly distributed periodic edge loads consist of steady components and oscillating components which are impulsive or vary according to an arbitrary piecewise constant law. It was observed that stable regions exist when the steady component of the applied load exceeds the static buckling load. For the particular combination of parameters associated with these regions the oscillating component of the load has a stabilizing effect on the structure. It was further observed that the mathematical structure of the equations governing the dynamic stability of simply supported sandwich plates and circular cylindrical sandwich panels is the same as that for the corresponding simply supported, homogeneous plates and panels, and a complete analogy exists between them.
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