cohesive element模拟复合材料损伤-VUMAT

脉动风速功率谱估计,并与标准风谱进行对比(Power spectrum estimation of pulsating wind speed and comparison with standard wind spectrum)

This FDTD 2D simulation based on Dennis Sullivan book s. Wave propagation in vacuum background using PML boundary conditions.

用Roe格式求解黎曼激波管问题的Fortran源代码。可以通过MUSCL插值来提高求解精度。适合计算流体力学的初学者参考学习。(Riemann shock tube problem with Roe scheme. You cam improve the accuracy by MUSCL interpolation. This code is suitable for CFD beginners.)

此源码包是我本学期最优化理论课程的大作业，其中包括了我自己写的以下常用最优化算法的实现代码：最速下降法，牛顿法，非线性最小二乘法，DFP法。fun1，fun2是两个测试函数。谢谢！(This is my source packages optimization theory this semester courses in large operations, including my own to write the following commonly used optimization algorithm code: steepest descent method, Newton method, nonlinear least squares method, DFP method. fun1, fun2 are two test function. Thanks!)

用MATLAB编写的遗传算法路径规划，可以提取一幅图中想要的目标，matlab开发工具箱中的支持向量机。( Genetic algorithms using MATLAB path planning, Target can be extracted in a picture you want, matlab development toolbox support vector machine.)

说明：  层次分析法：计算代码在8文件中最后一页上，有实例。(AHP)

这些代码主要是解决数学建模中存在的一些普遍问题的。(These codes mainly deal with some common problems in mathematical modeling)

ABAQUS纤维增强复合材料损伤失效UMAT(ABAQUS UMAT subroutine for fiber-reinforced composite failure analysis)

说明：  c++语言求解稀疏矩阵方程组的ICCG法源程序。参考：《工程电磁场数值计算分析与综合》 附录（Fortran90）.(c++ solves sparse matrix equations with the ICCG method.Reference: &quot Analysis and Synthesis of Numerical Electromagnetic Field ,&quot Appendix (Fortran90).)

最优化课程中的最速下降法matlab程序，利用了wolfe搜索和armijo线搜索(Matlab program of steepest descent method in optimization course, using Wolfe search and Armijo line search)