这是一个平面桁架结构的通用有限元程序分析，将原始数据（节点坐标、连接关系、材料几何参数边界条件）存储，利用以上数据编辑Matlab 程序计算桁架的应力、应变、位移分量，将所得数据存入二进制文档，并且研究当固定单胞数目时，怎么修改设计，在不明显增加质量时，降低最大应力杆的应力。

-This is a general-purpose finite element program planar truss structure analysis, the raw data (node ​ ​ coordinates, connected relationships, material geometry boundary conditions) storage, using the above data editing program to calculate the stress truss Matlab, strain and displacement components, the resulting data When stored in binary files, and when the number of fixed single-cell research, how to modify the design, no significant increase in the quality and reduce the stress maximum stress rod.