A Novel Meshless Analysis Procedure for Three-dimensional Structural Problems with Complicated Geometry

A novel meshless analysis procedure is established for practical implementation in dealing with three-dimensional structures with complicated geometry. By this procedure, to describe the surface of structure, the Stereo-lithography (STL) geometry technique is first adopted. Nodes are then generated...

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Bibliographic Details
Published in:Computer modeling in engineering & sciences 2013-01, Vol.93 (2), p.149-166
Main Authors: Chen, Wen-Hwa, Lee, Ming-Hsiao
Format: Article
Language:English
Subjects:
Adjustment
Computer simulation
Dealing
Finite element method
Geometry
Mathematical analysis
Mathematical models
Meshless methods
Three dimensional
Three dimensional analysis
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Summary:A novel meshless analysis procedure is established for practical implementation in dealing with three-dimensional structures with complicated geometry. By this procedure, to describe the surface of structure, the Stereo-lithography (STL) geometry technique is first adopted. Nodes are then generated and paved uniformly in the space over the entire structure analyzed. To decide the node distribution inside the structure, a geometry-related treatment scheme with relevant checking mechanisms is developed. Besides, a simple and direct spatial integration scheme is also proposed. By this integration scheme, integration points are evenly distributed in the structure and can be adjusted easily to meet the required solution accuracy. Two three-dimensional structural problems with irregular-shaped geometry are solved to demonstrate the advantages and high efficiency of the present novel meshless analysis procedure.
ISSN:1526-1492
1526-1506
DOI:10.3970/cmes.2013.093.149