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Two Dimensional Automatic Quadrilateral Mesh Generation for Metal Forming Analysis  

Kim, Sang-Eun (삼성테크원)
Yang, Hyun-Ik (한양대학교 기계공학과)
Publication Information
Korean Journal of Computational Design and Engineering / v.14, no.3, 2009 , pp. 197-206 More about this Journal
Abstract
In a finite element analysis of the metal forming processes having large plastic deformation, largely distorted elements are unstable and hence they influence upon the result toward negative way so that adaptive remeshing is required to avoid a failure in the numerical computation. Therefore automatic mesh generation and regeneration is very important to avoid a numerical failure in a finite element analysis. In case of generating quadrilateral mesh, the automation is more difficult than that of triangular mesh because of its geometric complexity. However its demand is very high due to the precision of analysis. Thus, in this study, an automatic quadrilateral mesh generation and regeneration method using grid-based approach is developed. The developed method contains decision of grid size to generate initial mesh inside a two dimensional domain, classification of boundary angles and inner boundary nodes to improve element qualities in case of concave domains, and boundary projection to construct the final mesh.
Keywords
Metal Forming; Remeshing; Quadrilateral Mesh; Automatic Mesh Generation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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