非线性有限元程序，NONSAP is a general finite element program for the nonlinear static and dynamic analysis of complex structures. The program is very flexible and was designed to be extended and modified by the user. In particular the program can easily be mo

有限元NONSAP源程序，里面带有例子，大家可以参考。-Finite element NONSAP source, which with examples, we can refer to.