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

Wen-Hwa Chen2,3, Ming-Hsiao Lee4
This paper is in honor of Professor Wen-Hwa Chen, on the occasion of his receiving the ICCES Lifetime Achievement Medal at ICCES13 in Seattle, in May 2013.
Dept. of Power Mech. Engng., National Tsing Hua University, Hsinchu, Taiwan, ROC.
Corresponding Author
National Center for High-performance Computing, NARL, Taiwan, ROC.

Computer Modeling in Engineering & Sciences 2013, 93(2), 149-166. https://doi.org/10.3970/cmes.2013.093.149

Abstract

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.

Keywords

Meshless method, complicated geometry, STL (Stereo-lithography) geometry, Integration scheme

Cite This Article

Chen, W., Lee, M. (2013). A Novel Meshless Analysis Procedure for Three-dimensional Structural Problems with Complicated Geometry. CMES-Computer Modeling in Engineering & Sciences, 93(2), 149–166.



This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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