Mathematical model of stress-strain state and force parameters of bending end sections of channels used in car building

The article examines one of the boundary value problems that arise when analyzing the bending operation; an approach is used as a solution method where differential equilibrium equations are solved together with the plasticity condition under known assumptions. Computer modeling of the bending operation was carried out using the DEFORM software package. The stress-strain state of the workpiece metal and kinematic characteristics were assessed, the bending moment and force parameters for bending the end sections of a channel of limited length were determined, and the springing angle was calculated.