A punch for making holes in steel plates is shown in Figure 4. Assume that a punchhaving diameter d = 20 mm is used to punch a hole of 8 mm plate. If force, V = 110kN is required to create the hole,...

A punch for making holes in steel plates is shown in Figure 4. Assume that a punch
having diameter d = 20 mm is used to punch a hole of 8 mm plate. If force, V = 110
kN is required to create the hole, determine the shear stress in the plate.