Computational Model Verification and Validation of Elastoplastic Buckling Due to Combined Loads of Thin Plates

Thin plates are widely used in various engineering applications. In some cases, these structural components may buckle due to compressive loads, which can be aggravated by lateral loads. Several authors have studied the elastoplastic buckling behavior of thin considering parameters such as material and geometric properties, support conditions, initial out-of-plane imperfections. Some studies also investigated effects notches holes on ultimate stress plates. The main goal present work is verify validate a computational model developed using Finite Element Method via ANSYS® software, simulate mechanical metallic under uniaxial or biaxial compression combined with load. proposed numerical was verified validated comparing its results analytical, numerical, experimental solutions found literature, reaching maximum differences errors around 5%. sequence, simple case study: simply supported plate centered rectangular perforation subjected an in-plane load load, five different materials: AISI 4130 steel, AH-36 spheroidal graphite iron (SGI), compact (CGI) Al 7075-T651 aluminum alloy. obtained consistent and, expected, prove applicability model. From this, evaluated, indicating that among cases higher smallest deflection were achieved, respectively, made steel steel.