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THREE-DIMENSIONAL FINITE ELEMENT MESHING BY INCREMENTAL NODE INSERTION

โœ Scribed by K. KONDO

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
963 KB
Volume
39
Category
Article
ISSN
0029-5981

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โœฆ Synopsis

This paper describes an efficient algorithm for fully automated threedimensional finite element meshing which is applicable to non-convex geometry and non-manifold topology. This algorithm starts with sparsely placed nodes on the boundaries of a geometric model and a corresponding 3-D Delaunay triangulation. Nodes are then inserted incrementally by checking the tetrahedral mesh geometry and topological compatibility between Delaunay triangulation and the geometric model. Topological compatibility is checked in a robust manner by a method which relies more on a mesh's topology than its geometry. The node placement strategy is tightly coupled to an incremental Delaunay triangulation algorithm, and results in a low growth rate of computational time.

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