有限元网格自动生成及图形显示程序

A Program for the Use of Finite Element Mesh Generation and Graphic Display

本文给出一个通用的二维有限元网格生成及图形显示程序。据此可将四边形超单元在等参变换基础上,划分成3结点三角形,4结点四边形,6结点三角形,6结点等参三角形和8结点等参四边形5种形式的单元组合,可得到单元结点的插值温度、厚度,可处理不同材料组成的结构,结点编码采用优化编码,自动显示生成的网格图形。

For the use of two—dimensional finite element mesh generation and graphic display,this pa- per provides a versatile program based on the concept of isoparametric mapping.Follow this progranm, a quadrilateral super element can be subdivided into five types of element combinations.They are 3 node trangular,4 node quadrilateral,6 node triangular,6 node isoparametric triangilar,and 8 node isoparametric elements.Follow this program,the interpolating nodal temperature and thickness can be mapped,and the construction consist of different materials can be handled.The nodes are coded by op- timum coding.The mesh graph generated can be displayed automatically.