The Non-linear Bending and Buckling of the Mine Steel Support

Abstract

This thesis deals with the investigation of the nonlinear bending of the mine steel support to the loss of stability due to shape and profile changes in plastic deformation. The use of the mine steel support is defined at the beginning of the research and is distinguished by the linear theory of the loss of straight bar stability. In the next section bending characteristics and replacement bending stiffness for fixed beam, subjected to pure bending, combined bending with axial compressive force are elaborately described. Another part deals with 3D “finite element analysis” in software Ansys Workbench where the process is divided and boundary conditions are applied to gather the required results of the analysis. The solutions from these analysis are presented in the last part, which deals with their mutual comparison.