Interaction of axial, shear and bending loads in buckling behavior of pierced and non-pierced long steel plates

Nowadays, there is a spread use of steel plates in various structures because of their well performance and economic advantages. Hence, investigating their behavior is necessary. In this study, the buckling behavior of long steel plates under combination of bending, shear and axial loadings is studied using the finite element method. The effects of fixed and pinned boundary conditions along the longitudinal edge are considered. Also the influence of adding some holes with varying diameters but with the fixed spatial place is investigated. The buckling behavior of the plate under various combinations of the loads in both non-pierced and pierced plates are compared. The loadings are applied along the plate’s edges such that, first, two loads are applied with various magnitudes, and then the third load is applied and its critical buckling load is computed. The obtained results show that the long plate under axial compressive loading has less sensitivity to the holes in comparison with the shear and bending loads. The holes with diameters equal or less than 0.06 of the plate’s width can hardly affect the critical buckling load.