基于MATLAB的四结点等参元的编程

Programming of isoperimetric quadrilateral element based on MATLAB

基于有限元理论,用MATLAB语言编制了四结点等参元计算机程序.计算了悬臂双向板在均布荷载与集中力共同作用下的位移、应力和应变,并与大型通用有限元软件ANSYS计算结果进行了比较,二者吻合较好,验证了本程序编制的正确性.利用MATLAB编程对结构进行分析计算比FORTRAN、C语言简便,具有精度高的优点.

Based on FEM theory, a program of isoperimetric quadrilateral element is made using MATLAB software. The displacement, stress, and strain of cantilever two-way slab are calculated under both equally distributed forces and concentrated forces. The comparison is made between the result of MATLAB and that of ANSYS. The results show that the program is right. The programming based on MATLAB is more convenient and accurate than FORTRAN or C language when it is used in the analysis of the structure.