Comparative study of six failure criteria via numerical simulation of stamped DP600 steel

During the development of an automobile part obtained by stamping process, time and money are required aiming process planning setup a new tooling. One difficulties in is to know if chosen material will have sufficient formability reach final form project. Because this difficulty, it very interesting propose method that can accurately simulate forming process. The failure criteria be mathematical or empirical models capable determining onset necking for each stress/strain states. It find criterion easily determined provides good ability detect accurately. In study, six different were studied. Five them classified as ductile damage they depend on stress triaxiality plastic strain. last depends only deformations main directions called limit curve (FLC). Computational through finite element analysis (FEA) used. was evaluated monitoring displacement punch until material. Lou Huh Johson-Cook been able provide approximation errors range 0.7–5% which makes practical implementation industry.