quick

FTCS scheme for three-dimensional Navier-Stokes equations

应用于abaqus二次开发，考虑J2流动法则，各向同性硬化，可作为初学者参考。(it can be used for a fresh hand to learn about the secondary development of abaqus,considered the J2 flow rule,isotropic hardening.)

弹粘塑性本构模型出发，考虑混凝土材料的损伤，推导提出混凝土弹粘塑性损伤本构模型，适用性强大。本模型能够反映出材料不同的拉压性能、材料的应变率敏感性、静水压力及中间主应力的影响，具有一定的实用价值。(Based on the constitutive model of the elastic viscoplastic constitutive model, the damage of concrete materials is considered, and the constitutive model of concrete elastic viscoplastic damage is deduced. This model can reflect the influence of different tension and compression properties, strain rate sensitivity, hydrostatic pressure and the main stress of the material, which has a certain practical value.)

3D流场计算，程序简单非常容易看懂。适合初学者学习(3D flow field)

Nelder-Mead算法,三维搜索，用于孔隙结构很方便(three dimentional simplex search)

材料随动硬化umat子程序，基于断裂力学可靠度计算方法(Material subroutine hardening UMAT subroutine, reliability calculation based on fracture mechanics.)

线弹性模型，可以对一般的弹性体通过abaqus进行验证使用(Linear elastic model)

Level set solver for two phases flow

datcom software aerodynamic predection aiaa datcom software aerodynamic predection aiaa datcom software aerodynamic predection aiaa datcom software aerodynamic predection aiaa datcom software aerodynamic predection aiaa

说明：  paul研究生教材，多导体传输线理论附录部分代码(Paul multi-conductor transmission line theory appendix code)