Drucker-Prager UMAT代码

ADINA 系统是一个单机系统的程序，用于进行固体、结构、流体以及结构相互作用的流体流动的复杂有限元分析。借助 ADINA 系统，用户无需使用一套有限元程序进行线性动态与静态的结构分析，而用另外的程序进行非线性结构分析，再用其他基于流量的有限元程序进行流体流动分析。此外， ADINA 系统还是最主要的、用于结构相互作用的流体流动的完全耦合分析程序（多物理场）。(ADINA System is a stand-alone system program for performing complex fluid flow finite element solid structure, and fluid structure interaction analysis. With ADINA system, users do not need to use a finite element program linear static and dynamic structural analysis, but with additional nonlinear structural analysis program, and then the other program flow based on finite element analysis of fluid flow. In addition, ADINA system or main, fully coupled analysis program for fluid flow structure interaction (multi-physics).)

PQ-Fiber 是清华大学土木工程系结构工程研究所基于大型通用有限元程序ABAQUS 开 发的一组材料单轴滞回本构模型的集合。主要用于在钢筋混凝土结构、钢结构等的弹塑性时 程分析中定义杆系结构的材料本构，同时可用于任何只需要定义材料单轴滞回本构模型的情 况。 作者以 FORTRAN 编译文件.obj 的形式在网上免费发布PQ-Fiber 的最新版本，以供广 大科研与工程设计人员使用，发布的版本没有功能限制。请使用者尊重知识产权，(PQ-Fiber is a Structural Engineering Research Institute of Civil Engineering Department of Tsinghua University. It is based on the large general finite element program ABAQUS. A set of uniaxial hysteretic constitutive models is set up. It is mainly used for elastic-plastic properties of reinforced concrete structures and steel structures. In the process analysis, the material constitutive equation of the bar structure is defined, and it can be used for any material requiring only a uniaxial hysteretic constitutive model. The situation. The author releases the latest version of PQ-Fiber on the Internet for free in the form of FORTRAN compiler.Obj. The use of large research and engineering designers has no functional limitations. Invites users to respect intellectual property rights,)

ansys 导入到adams中做刚柔耦合分析方法二，采用质量单元mass21，希望大家在adams中做刚柔耦合分析有所帮助(ansys and adams work together)

说明：  直流输电仿真计算编程 PSCAD/MATLAB(Matlab programming of HVDC)

该程序可进行2D和3D恒定流分析，程序中对矩阵含义和比较难理解的部分进行了简要说明(The program can be used for 2 D and 3 D constant flow analysis. The meaning of matrix and the parts that are difficult to understand are briefly explained in the program)

用于计算大气辐射传输的在windows界面下的软件，可以计算大气透射率，大气程辐射，等进行大气校正(The software used to calculate atmospheric radiative transfer under the windows interface can calculate atmospheric transmittance, atmospheric range radiation and other atmospheric correction.)

考虑比奥固结的土体应力研究程序，非线性及弹塑性比奥固结平面有限元。(Consider the Biot s consolidation of the soil stress research program, non-linear and planar elastic-plastic finite element Biot s consolidation.)

用于PSCAD的元件库模型，可以用于搭建柔性直流输电的MMC模型，使用此元件库更加方便，实用。(For the PSCAD component library model, can be used to build flexible DC transmission of the MMC model, the use of this component library more convenient and practical.)

计算二维非问题油内热源问题导热，可以参考学习(Calculation of two-dimensional non thermal problems in oil heat conduction, you can refer to the study)

将ABAQUS的ODB结果文件按照人为要求在文本文档中记录(On ABAQUS ODB results file records in a text document in accordance with human requirements)