| HEXAHEDRAL ELEMENT REFINEMENT FOR THE PREDICTIONCORRECTION ALE FEM SIMULATION OF 3D BULKING FORMING PROCESS |
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| 引用本文： | J.Chen Y.X.Wang W.P.Dong X.Y.Ruan. HEXAHEDRAL ELEMENT REFINEMENT FOR THE PREDICTIONCORRECTION ALE FEM SIMULATION OF 3D BULKING FORMING PROCESS[J]. 金属学报(英文版), 2004, 17(6): 923-927 |
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| 作者姓名： | J.Chen Y.X.Wang W.P.Dong X.Y.Ruan |
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| 作者单位： | DepartmentofPlasticityEngineering,ShanghaiJiaotongUniversity,Shanghai200030,China |
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| 摘 要： | Based on the characteristics of 3D bulk forming process, the arbitrary Lagrangian-Eulerian (ALE)formulation-based FEM is studied, and a prediction-correction ALE-based FEM is proposed which integrates the advantages of precisely predicting the boundary configuration of the deformed material, and of efficiently avoiding hexahedron remeshing processes. The key idea of the prediction-correction ALE FEM is elaborated in detail. Accordingly, the strategy of mesh quality control, one of the key enabling techniques for the 3D bulk forming process numerical simulation by the prediction-correction ALE FEM is carefully investigated, and the algorithm for hexahedral element refinement is formulated based on the mesh distortion energy.
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| 关 键 词： | 腐蚀预防 ALE FEM 数字仿真 金属三维结构 六面体 网格精炼 有限元 |
HEXAHEDRAL ELEMENT REFINEMENT FOR THE PREDICTIONCORRECTION ALE FEM SIMULATION OF 3D BULKING FORMING PROCESS |
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| J.Chen,Y.X.Wang,W.P.Dong,X.Y.Ruan. HEXAHEDRAL ELEMENT REFINEMENT FOR THE PREDICTIONCORRECTION ALE FEM SIMULATION OF 3D BULKING FORMING PROCESS[J]. Acta Metallurgica Sinica(English Letters), 2004, 17(6): 923-927 |
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| Authors: | J.Chen Y.X.Wang W.P.Dong X.Y.Ruan |
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| Affiliation: | Department of Plasticity Engineering, Shanghai Jiaotong University, Shanghai 200030, China |
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| Abstract: | Based on the characteristics of 3D bulk forming process, the arbitrary Lagrangian-Eulerian (ALE) formulation-based FEM is studied, and a prediction-correction ALE-based FEM is proposed which integrates the advantages of precisely predicting the boundary configuration of the deformed material, and of efficiently avoiding hexahedron remeshing processes. The key idea of the prediction-correction ALE FEM is elaborated in detail. Accordingly, the strategy of mesh quality control, one of the key enabling techniques for the 3D bulk forming process numerical simulation by the prediction-correction ALE FEM is carefully investigated, and the algorithm for hexahedral element refinement is formulated based on the mesh distortion energy. |
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| Keywords: | prediction-correction ALE FEM 3D bulk forming numerical simulation hexahedron mesh refinement |
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