| In today's practice of forming simulation, frequent remeshing has been a bottleneck in the overall procedure. To make the simulation more cost effective and to reduce the simulation lead time, an automated mesh (re)generated is desired.; Since the problems associated with mesh generation are common to all Finite Element Method (FEM) applications, an automated mesh generation procedure has also been a goal in the FEM community. Currently, the adaptive method together with the advanced grid generation technique have made it possible for a certain class of FEM applications such as problems related to elastic, or steady state fluid dynamics.; In these applications, the geometry or the control volume and the boundary condition do not change during the FEM analysis. The constant change in the configuration of the workpiece in forming makes current research more challenging. Most of the grid generation techniques utilize triangular meshes generation. The generation of the quadrilateral mesh which is generally recommended for forming applications has also been considered a difficult task.; The Automated Mesh Generation (AMG) system, developed in the study, consists of two basic modules: (1) Mesh Generator and (2) Mesh Density Generator. They are tightly coupled with the same density representation scheme that was developed under this research. In this scheme, the mesh density is represented or known at any point of the object to be meshed. The mesh density generator determines the density by considering the geometry, solution behavior, and the available computational resources. The mesh generator generates the quadrilateral mesh based on the given density distribution.; For a fully automated remeshing procedure, AMG has also been coupled with a FEM based program called DEFORM. With the procedure, user intervention to perform the remeshing has been eliminated. The success of many tested cases indicates that AMG will revolutionize the way that forming simulations are performed. |
