A 3-DIMENSIONAL FINITE-ELEMENT ANALYSIS OF HOT EXTRUSION THROUGH SQUARE DIES - AUTOMATIC REMESHING TECHNIQUE WITH MODULAR CONCEPT

Applies an updated Lagrangian finite element analysis with automatic r emeshing scheme to three-dimensional hot extrusion through landless sq uare dies. The remeshing procedure is composed mainly with decision fo r remeshing, transfer of state variables and mesh generation. The proc edure is carried out fully automatically. In the procedure, it is diff icult to generate the mesh automatically, considering the physical cha racteristics. Accomplishes mesh generation by introducing the modular concept. The mesh generated by the modular concept has advantages, esp ecially for three-dimensional problems, such as economic computational , time and consideration of physical characteristics. Classes the prof iles of orifice into two cases; and develops the orifice adaptive modu le for each case and then carries out numerical examples by using the orifice adaptive modules.