塑性成形中的六面体网格划分与重划分技术

Meshing and remeshing techniques of hexahedral elements in plastic forming

基于材料成形中三维单元数值模拟分析的重要性 ,对四面体网格划分存在的弊端 ,提出了有效的六面体网格划分与重划分方法 ,以及划分与重划分的判据。最后以有限元模拟软件MSC SuperForm为平台 ,应用六面体离散法对铝材挤压变形进行模拟分析 。

Based on the emphasis of 3D material forming in numerical simulation, this paper discusses the shortcomings of delaunay mesh. and put forward effective methods for meshing,re-meshing and criterion of hex-mesh . Finally, using the MSC.SuperForm software of FEM,aluminium section bar is simulated and analyzed in the process of continuous extrusion and cladding , which verifies the feasibility and reliability of hex-mesh.