BEMforacoustics

umat subroutin for 2d ladovez damage model i ncomposite materials

DOA估计：最大熵算法、最小模算法、最小方差算法。输入： 快拍数据协方差矩阵R，观察范围内各方向导向矢量，三维矩阵phiyz。输出：最小方差谱估计矩阵P。(DOA Estimation: maximum entropy algorithm, the minimum norm algorithm, the minimum variance algorithm. Input: snapshot of the data covariance matrix R, the steering vector of each direction in the observed range of three-dimensional matrix phiyz. Output: the minimum variance spectral estimation matrix P.)

实现用fluent udf自定义k~e方程(Define the k~e equation by using fluent udf function.)

晶体相场计算原子密度场分布和缺陷形成,基本程序，用于科学计算。基于Fortran 6.5编写，在其他应用程序中可能需要略微修改(Phase-field crystal modeling of atomic density field distribution)

模拟Chaboche非线性随动硬化各向异性塑性的例子 -HILL和CHAB的实例(Chaboche simulation examples of anisotropic nonlinear kinematic hardening plastic -HILL and examples of CHAB)

说明：  c语言编写的高效用LU分解法求任意维数的矩阵的逆，它是经典书籍《算法导论》（第二版）中矩阵求逆的c语言实现。 (The algorithm of matrix inverse is based on LU decomposition which is proposed by the book of introduction to algorithm (second edition).)

用来作为数学建的参考资料学习，希望对爱好则用所帮助(math model study study .Used as a reference material for Mathematical Studies)

利用下载的goce原始数据，计算得出含有时间/经纬度/重力梯度格式的程序(Use downloaded goce raw data, calculated with the time/latitude/gravity gradient program formats)

说明：  abaqus子程序学习资料，欢迎大家下载学习，共同讨论~(ABAQUS subroutine learning materials)

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)