The effects of boundary conditions on postbuckling of compressed, Symmetrically, laminated, thick plates
The present work uses a shear deformable plate finite element of Reissner Mindlin type. Nonlinearites of von Karman type are included(large rotations, large strains, and material nonlinearities are not considered). To obtain low bandwith of FEM stiffnesses matrices, the simple four node plate element Q4 is employed