四边形有限元网格划分方法——二分法的改进

An improved subdividing method for quadrilateral finite element

提出了一种自动的四边形网格生成法,其实质是把被划分区域无限地分割,直到整个区域全部由四边形单元组成。文中对关键技术最优分割线确定作了改进。实例表明该方法适用性强,可以用于有限元网格的初始划分和网格重分。

The paper describes the development of an automatic, 2D quadrilateral element mesh generator. The core of methodology is that the domain to be meshed is subdivided infinitely until only quadrilateral elements remain. Some techniques concerning determination of best splitting line are improved in detail. The application example was given, which show versatility and applicability of the presented approaches. The improved mesh generator can be applied in initial mesh generation and remeshing for the rigid-plastic FEM.