Numerical analysis of a hot‐strip rolling problem with Coulomb‐Siebel friction

An isothermal, steady‐state, hot‐strip rolling problem for rigid‐plastic, strain rate sensitive and incompressible materials with coulomb‐siebel friction contact conditions is considered. The corresponding penalty variational statement is given and a convergent finite element ‐ secant‐modulus method is presented. Two‐dimensional example problems are solved and comparisons with the available experimental and numerical results are made. The influence of the friction coefficient on the contact velocities, stresses and equivalent strain rates is illustrated.