NUMERICAL SIMULATION OF DEEP DRAWING PROCESS WITH DISCRETIZED DRAWBEADS
In this paper we describe simulation of deep drawing process with discretized drawbeads. Due to CAD modelling simplicity and computational efficiency, in case of shallow parts drawing it is usual to use analytical or equivalent drawbead model. Unfortunately, in some cases, particularly in deep drawing of non-symmetric parts with increased depth, this simulation approach cannot lead to accurate predictions. Besides its complexity, more reliable results can be obtained by discretised model. We present such a drawbead model with triangular shell elements. By comparing numerical and experimental results, we show that discretized drawbead model leads to better predictions of deformations and deep drawing force.