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Graph-based midsurface extraction for finite element analysis

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3 Author(s)
Hanmin Lee ; Korea Inst. of Machinery & Mater., Daejeon ; Yong-Youn Nam ; Seong-Whan Park

The geometry of CAD model needs to be idealized in order to reduce the complexity of the finite element model. A thin solid model should be abstracted to midsurface model. This paper describes a graph-based method that extracts midsurface patches from solid model and joins them automatically. Face-pairs are first found by ray-casting process, and midsurface patches are generated by geometric interpolation of them. During this process, a graph which contains mapping information of face-pairs and midsurface patches is generated. Using this graph, midsurface patches are extended, trimmed and joined to generate a complete midsurface model. In this paper, a concrete method of midsurface patch connection which is not handled in the previous researches is proposed.

Published in:

Computer Supported Cooperative Work in Design, 2007. CSCWD 2007. 11th International Conference on

Date of Conference:

26-28 April 2007