Finite-Element Modeling of Plate-Rolling

Results are presented from calculation of the geometry of the deformation zone and the kinematics of plate-rolling. The results were obtained using the program packages DEFORM-3D and Q-FORM. A comparative analysis is made of the data based on the length of the lag and advance zones and the character of the nonuniformity of the stress and strain states during the rolling of plates. The criterion chosen to characterize the nonuniformity of strain inside the deformation zone is the coefficient of variation S/Λ_av, where Λ_av is the average shear strain over the height of the plate and S is the standard deviation. The stress state was evaluated on the basis of the stress-state index σ/T. A mathematical model of the plate-rolling process was constructed with allowance for the range of steels rolled on the 5000 mill at the Magnitogorsk Metallurgical Combine and the technological capabilities of the mill's equipment.