Abstract
An eight-noded quadratic rectangular element is developed in order to study the stability aspects of a layered rectangular composite plate under biaxial loading. The element has five degrees of freedom per node. The formulation includes the Mindlin-type nonlinear strain-displacement relations. The adoptability of the element is demonstrated by solving a number of problems for which results exist in the literature. The effects of fibre orientation, material properties, layering and boundary conditions on the buckling load are studied in detail. The deficiency of earlier reported results is also pointed out.
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