空间问题和空间轴对称问题中单向拉伸的杆的matlab有限元计算源程序，配套书籍是《ansys分析与matlab编程：徐荣桥》-Space issues and space axisymmetric problems in uniaxial tension rod Matlab finite element calculation source, supporting books ansys analysis and the matlab programming: Xu Rong Bridge &