On non-axisymmetric buckling modes of inhomogeneous circular plates

Unsymmetrical buckling of nonuniform circular plates with elastically restrained edge and subjected to normal pressure is studied in this paper. The asymmetric part the solution sought terms multiples harmonics angular coordinate. A numerical method employed obtain lowest load value at which waves circumferential direction can appear. effect material heterogeneity boundary on examined. For a plate edge, mode number increase rise spring stiffness. Increasing elasticity modulus leads increasing pressure, but does not change. If translational flexibility coefficient small, decreasing shell (plate) sufficient lowering pressure.