Finite element modeling of hot rolling: Steady- and unsteady-state analyses

This chapter deals with the thermomechanical analysis of the deformable workpiece, undergoing a hot rolling process, through finite element modeling (FEM). It begins with a brief introduction to the hot rolling, basics of FEM, and also the research works carried out on the hot rolling process in last few decades, by using FEM. The contact between the roll and the workpiece is discussed in details. At the end, the thermomechanical behavior of the workpiece was analyzed through steady- and unsteady-state methods. The arbitrary Lagrangian and Eulerian (ALE) approach and the updated Lagrangian approach have been considered to analyze the rolling process as a steady-state and an unsteady-state process, respectively. Computational time taken and memory occupied by both the methods are reported. The results of both the approaches, in terms of temperature, effective stress, effective strain, rolling load, and rolling torque are presented at the end of this chapter.