Fig. 1

Schematic representation of the shearing geometry and boundary conditions. The moving tool and corresponding clamp have the same velocity v in the y-direction. Reaction forces on the moving tool as result of the velocity v are F _x and F _y . Definitions of sheet thickness h, clearance c, radius of the tool arc r and tool displacements U _x and U _y are shown in the magnified area (Gustafsson et al. 2014)