Computer simulation of the rolling process of a bimetallic strip in an automated software environment

The rolling process of a bimetallic strip with a sintered steel center and aluminum Parts on the sides was studied by computer simulation and analytical method in case of Large plastic deformations. At modeling in the automated programming medium, data of components of the Stress-strain state are obtained. At four points of contact of the strip with the roll and at six Knots at the entrance and exit of the rolling zone, the values of tangential, longitudinal, transverse and average stresses, the normal contact pressure, the equivalent stresses and deformations, and the magnitude of the current porosity are determined. Tables of these values are made up, and graphs of magnitude of porosity of the material are plotted. Using the computer simulation data and the equation from the deformation theory of plasticity of porous materials, on the forenamed points and knots, the values of the porosity of the material were determined by the analytical method. Numerical calculations were performed in the MS EXCEL software environment with an initial 20% porosity of the inner part of the bimetallic strip. The obtained data were compared with the data of computer