Development of Inverse Method to Estimate Stresses on the Roll Surface During Rolling

This chapter explores the development of an inverse method to estimate normal and frictional stresses on the roll surface during rolling. It addresses the limitations of conventional slip ratio models and the need for accurate stress measurement. The authors introduce a method using multiple strain gauges installed inside the roll, employing the least squares method with constraint coefficients to suppress higher-order term divergence. Experimental results demonstrate the method's effectiveness in estimating stress distributions under different lubrication and roughness conditions. The study highlights the potential of this method in understanding friction mechanics and improving rolling model accuracy, with further systematic experiments recommended for deeper insights.