A dimensional analysis of front-end bending in plate rolling applications

In this contribution a mathematical description of the ski effect is provided, embedding this process into a finite element framework of plasticity in the context of large deformations. In order to qualify the impact of specific process parameters a corresponding dimensional analysis is performed. The introduced dimensionless quantities give rise to a complete parametric study of the process under consideration. Both the ratio of the circumferential velocity of the rolls and the difference of the friction coefficients as a cause for ski effect are exposed and their influence as well as their interdependency subjected to different roll geometries are studied.