Fracture prediction of sheet-metal blanking process

Publisher Summary This chapter provides a finite element model allowing for the numerical studies of structures, subjected to damage and ductile fracture. To meet this goal, the best suited models describing the whole blanking process have been used in the chapter. Making of thin mechanical parts that requires costly tools and machines is widely used. A modern way to decrease the development's costs is to implement a numerical simulation. In the case of sheet-metal forming, the process involves complex solicitations of the material and many physical phenomena, such as hardening and damaging, may occur leading to modifications of the material's behavior. In some processes as blanking, shearing and punching, the rupture of the sheet is wanted. Consequently, during the numerical simulation, a mechanical behaviour model will necessarily account for damaging and will include several failure criteria. This allows for a more realistic outlining of the industrial process from its starting point up to the final breaking of the part.