Buckling of arbitrary quadrilateral anisotropic plates

Abstract

The problem of buckling of arbitrary quadrilateral anisotropic plates with different boundary conditions under combined in-plane loading is considered. A Rayleigh-Ritz method combined with a variational formulation and a first-order transverse-shear-deformation theory is used. The Ritz functions consist of polynomials which include «circulation» functions that impose various boundary conditions. Numerical results are obtained for isotropic, orthotropic, and anisotropic plates with skewed geometries and are compared with existing results that use series solutions and with results generated from finite element simulations