Determining the effect of finite element calculation parameters on simulation time and accuracry

In the study, it is aimed to determine the effects of finite element calculation parameters on sheet metal forming simulation time and accuracy. In this context, symmetry condition, element size, element formulation, number of integration points, time step size, adaptivity level, forming speed, plasticity model, and number of cores in CPU are analyzed as finite element calculation parameters. Square cup drawing is used as sheet metal forming process due to its capability of analyzing materials formability properties. TRIP600 advanced high strength steel is used as material. Forming force vs. punch stroke curve is used as experimental result for validating finite element simulation prediction accuracy. Then, simulations with determinated parameters were performed with selected values and effects of these parameters on simulation time and accuracy are contained. Simulation with determined parameters minimized the simulation time as approximate 90%.