一种微机有限元二维静弹性分析程序

A FEM Program for 2D-Elastostatic Analysis with Personal Computers

介绍了作者用ＮＤＰＦＯＲＴＲＡＮ—３８６语言编制的微机有限元二维静弹性分析程序ＥＳＡＰ８．在前处理部分，用映射法对求解域进行单元自动划分，并可在屏幕上显示单元划分、载荷及约束状况；有限元分析部分采用波前法解方程组并对应力作了光滑处理；通过后处理程序可显示结构变形、等位移线及各种等应力线。整个程序采用“人机对话”方式按自由格式输入数据，具备数据错误提示及输入数据自动记录功能，应用十分方便．

A FEM Program ESAP8 for 2D - elastostiatc analysis with personal computers developed with NDP Fortran-386 is presented. In the preprocessing,the FE mesches are generated using mapping method,and can be viewed on the screen together with constraints and load conditions; In the FE analysis, the wave - front solver is used and the node stresses are treated smoothly ;In the postprocessing , structure deformation, isolines of displacemnt and isolines of various stresses can be shown and printed. The data needed for running the program are input by interaction with free format. The program has functions of data - errors warning and interaction records for user's convenience.