一、前言二维有限元程序主要用于工程设计中的结构变形和应力分析。如果有一个二维的200个元素,500个节点的有限元问题,采用八节点等参数方法,就有数据200×8+500×2=2600个,而这种情况在实际计算中是屡见不鲜的。因而,数据输入过程中,很难保证一次成功;同时,发现这些错误也是十分困难的。就是说,有必要对输入数据进行验证 I. Introduction Two-dimensional finite element program is mainly used for structural deformation and stress analysis in engineering design. If there is a two-dimensional finite element problem with 200 elements and 500 nodes, using the method of eight nodes and other parameters, there will be data 200 × 8 + 500 × 2 = 2600, which is not uncommon in actual calculation . Therefore, it is difficult to ensure a one-time success in the process of data input. At the same time, it is very difficult to find such mistakes. That is, it is necessary to verify the input data