A Grid‐based approach to non‐regular mesh generation for automatic remeshing with metal forming analysis

Abstract

An extension of grid-based approach with non-regular grid, as a master grid, is proposed for automatic remeshing during the finite element analysis of metal forming processes. In the proposed technique, the mesh is constructed by superimposing master grid over the object to be meshed, then taking internal cells of the grid as the elements, and finally modifying the rugged boundary with layers of surface elements and mesh smoothing. The construction method of surface element layers and the subsequent mesh smoothing technique are proposed to improve the shapes of severely distorted boundary elements. In order to verify the validity and effectiveness of the present technique, as a typical mesh generation example requiring a master grid and the finite element analysis of inner race forging is presented. Copyright © 2000 John Wiley & Sons, Ltd.