diff2

说明：  一部分是Fortran代码可以用自学，一部分是abaqus hetval子程序用来实现混凝土水化热的代码(Part of the Fortran code can be used for self-study, and part of the code for the abaqus hetval subroutine to realize the heat of hydration of concrete)

说明：  格子玻尔兹曼仿真多孔介质，适合煤炭，石油，岩土等行业(Lattice Boltzmann simulation of porous media, suitable for coal, petroleum, geotechnical and other industries)

abaqus的平板约束数值模拟源文件，适合abaqus新手操作练习使用(ABAQUS source files for numerical simulation of plate constraints, suitable for ABAQUS novice operation exercises)

说明：  模拟金属材料单向压缩过程，用abaqus模拟压缩过程的例子，该非常适合abaqus的初学者(Simulating Unidirectional Compression Process of Metal Materials)

说明：  张拉膜结构非线性有限元法找形程序，采用ANSYS APDL语言编制，附带详细注释(Non-linear Finite Element Method (FEM) finding program for tensioned membrane structures, wrote by ANSYS APDL with detailed comments.)

说明：  39节点系统稳态和暂态运算的bpa源代码(BPA power flow calculation code for 39-node system)

说明：  黏弹性阻尼器试验设计，方案以及尺寸设计，涉及到相似转换原则(Test Design of Viscoelastic Damper)

说明：  赤平投影软件 赤平投影安装时间为2010年7月26日。 试用期（一个月）过后，需将系统时间更改为上次安装时间方可继续使用该程序。(The LISP program. The installation time of stereographic projection is July 26, 2010. After the probation period (one month), you need to change the system time to the last installation time before you can continue to use the program.)

diff 2 for stationary data

说明：  3维米塞斯屈服准则模型，子程序为vumat，用于abaqus(ABAQUS 3-dimensional Mises yield criterion)