THREE-DIMENSIONAL METAL FORMING SIMULATION WITH AUTOMATED ADAPTIVE TETRAHEDRAL ELEMENT GENERATION

지능형 사면체 요소망 자동생성기법을 이용한 삼차원 소성가공 공정 시뮬레이션

In this paper, finite element simulation of three-dimensional bulk metal forming processes is performed by an automated adaptive tetrahedral mesh generation scheme. A dynamic data exchange scheme is employed between tetrahedral mesh generator and forging simulator to minimize user intervention. Both number of elements and density distributions are controlled by the octree technique. The presented approach is applied to automatic forging simulation in order to evaluate the efficiency of the developed schemes and the simulation results are compared with $DEFORM^{TM}$.