Effect of Width/Thickness Effect of Sheet Metals on Bendability

The effect of width/thickness ratio on the bendabilityBendability of sheet metal is investigated using the finite element method (FEM)Finite element method (FEM) employing the Gurson–Tvergaard–Needleman (GTN) model. Strain path changes in the sheet with a change in width/thickness ratio. It is shown that bendability and fractureFracture strain increase significantly by a decrease in width/thickness ratio. The stress state is almost uniaxial …