fortran初学者 有限元法运用常应变三角形单元解弹性力学平面问题-the fortran beginners finite element method for the use of constant strain triangular element solution of plane problems in elasticity

采用fortran编写，有限元三角形三节点单元适合初学者-the main code of this files is using fortran to calculate triangle element

Fortran软件及三节点三角形单元，八节点等参单元等几个单元应力分析源程序(Fortran software and three node triangular element, eight node isoparametric element and several other element stress analysis source program)