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FRIC-COEF
用于ABAQUS模型指数衰减的摩擦子程序(Friction subroutine for exponential decay of ABAQUS models)
- 2020-12-27 14:39:02下载
- 积分：1
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ABAQUS+UMAT+FORTRAN
ABAQUS中用户材料子程序UMAT的开发主要解决两方面的问题：本构模型的建立和积分算法的选择。
本文主要研究非线性材料的UMAT实现方法，并重点研究其迭代算法部分，目前，用户材料子程序UMAT的迭代算法主要是常刚度法，常刚度法的优点在于算法原理较简单，程序编写较方便，缺点是当遇到复杂非线性材料时，其迭代次数较多，收敛速度也较慢，在这个情况下，本文采取的是一种迭代次数较少且收敛速度较快的切线刚度法，具体就是采用FORTRAN语言编制了基于Von-Mises模型的接口程序,并采用切线刚度算法，通过与ABAQUS自带本构关系计算的结果相比较，验证其正确性。(This paper studies the user subroutine UMAT of ABAQUS development methods, the use of FORTRAN language isotropic hardening material model of the interface program, studied the effects of such material is extremely elastic-plastic constitutive relation method.
This article UMAT tightly around the secondary development of technology, the first principle of its interface detail, and then for the theory of nonlinear finite element incremental stiffness of the regular tangent stiffness method and the theory of algorithms to do an in-depth analysis of deduced a regular tangent stiffness and rigidity of the law of the specific expression of algorithm theory, and then the preparation of the two algorithms, respectively, of the UMAT program, and finally the establishment of a specific model checking, bringing with ABAQUS elasto-plastic constitutive relation of the calculated results compared to verify the correctness of the two.)
- 2020-12-05 21:59:24下载
- 积分：1
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fem-3d
三维有限元计算程序
可计算弹性波场传播过程中三维空间中的形态
fortran90(3 dimension FEM)
- 2020-12-30 20:58:59下载
- 积分：1
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utmc
本程序用于生成高质量的网格，可用于有限元，有限体积等方法的前处理。(This procedure is used to generate high-quality mesh, can be used for finite element, finite volume methods such as pre-processing.)
- 2017-08-10 11:24:49下载
- 积分：1
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sort
对单炮地震数据抽稀：地球物理物探工作者必备程序(a procedure of vacuate of signal shot data)
- 2014-01-29 20:26:14下载
- 积分：1
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transformer_faults
transformer protection
- 2015-05-13 05:29:45下载
- 积分：1
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FreqMeter_v41
电力系统仿真建模需要的模型，可以适合智能电网，分布式发电,PWM 控制(power system modeling control smart grid stability)
- 2013-09-13 07:12:15下载
- 积分：1
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roefou
用Roe格式的一阶迎风差分方法解决欧拉方程的黎曼问题(Solves the Riemann problem for the Euler equations using Roe s first-order upwind method
)
- 2020-10-18 23:47:26下载
- 积分：1
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带反应的二维格子玻尔兹曼方法的传质模型
upper reaction----做的是一个上边界的反应源项，做出来的整体趋势是与一些文献是基本一致
- 2023-04-02 05:15:03下载
- 积分：1
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qsadd
flow3d中的源代码，适用于flow3d的二次开发，希望对大家有所帮助(source code in the flow3d flow3d apply to the second development, we want to help)
- 2020-07-01 07:00:01下载
- 积分：1
