Buckling Bearing Capacity Analysis of Perforated Thin Plates under In-plane Load

In the design process of perforated thin plates, the buckling analysis for guaranteeing larger buckling bearing capacity and determining reasonable hole forms is essential. The nonlinear buckling behavior of the perforated plate under in-plane load is studied in this paper by using the Riks Method and the effects of geometrical parameters such as imperfection shape, hole size and hole location on buckling bearing capacity are considered. The results show that the increscent hole size or hole rotation angle always cause linear decrease of the buckling load. The buckling bearing capacity is inversely proportional to the spacing between hole center and plate center.