The Visualization Research For 3D Finite-element Data Fields

Lots of data are created in the finite element (FE) analysis. When the data are visualized, the FE simulation results can get directly and quickly by researchers. AVS software is a universal visualization system, which links the technique of science computation visualization and the computer's ability. A visualization program frame can be developed base on the AVS's module. The author of this thesis developed a program for 3D FE data fields on the base of AVS software, which is named as PostCORE. The main works and achievements completed are as follows:Firstly, the documentation about the technique of science computation visualization and the application of visualization technique in FE are collected and classified. The fundament of graphics and the basic theory of FE are introduced. The element and the feature about the advanced visual AVS/Express software are summarized.Secondly, a visualization program about 3D FE data fields is developed on the base of AVS software. It can create 3D geometry model - mesh model ,. the elimination about the hide line in meshmodek color cloud picture , isoline graph , distance vector graph, surface isoline graph of 3D geometry model, isosurface graph, isovolume graph and cell shrink graph. User may probe data interactively in every graph. Besides, the same calculation data are visualized by the PostCORE program and Surfer software, and a contrast about the same visual graph is made, which prove the correctness of the program.Finally, a conclusion and the discussion about the next study on this topic are given.