Stress-wave-induced-Fracture

sap4源代码！by fortran 这是一个有限元计算的软件 可以完成平面，三维的计算功能(SAP4 source code! By FORTRAN This is a finite element software can be completed planar, 3D computing power)

粘弹正演程序和模型实例,2维数值模拟正演，适应于粘弹介质，(This program can be two-dimensional numerical simulation of acoustic wave equation, Viscoelastic isotropic media.)

说明：  通过MATLAB编程模拟理想弹塑性应力应变曲线(Simulating the stress-strain curve for perfect plasticity by MATLAB coding.)

平面单元四边形八结点单元的应力应变分析,考虑了应力应变梯度(the analysis of 2D plane including stress and strain)

异或校验，用于北斗一代数据计算校验码，已验证(XOR checksum for the data checksum generation Beidou, Verified)

这是大地电磁一维正演程序，只要输入电阻率和深度即可正演计算；使用的是卡尼亚视电阻率公式，有关说明已经在文件中说明。(This is a one-dimensional magnetotelluric forward the program, as long as the input resistivity and depth to forward calculation use Carney ATV resistivity formula, and instructions in the file description.)

C++实现的FFT，详细，简单，内含多个测试类(using C++ implements fft，including serials class)

vc++实现的矩阵运算方面得代码，很不错的，内容绝对好吃(matrix operations, code vc++ achieve very good, the content is absolutely delicious)

感应双馈发电机系统的仿真，基于分段非线性权重值的Pso算法，计算多重分形非趋势波动分析matlab程序。( Simulation of doubly fed induction generator system, Based on piecewise nonlinear weight value Pso algorithm, Calculation multifractal detrended fluctuation analysis matlab program.)

计算流体力学，HLL格式的一个算例，可以直接计算，适合初学者，易懂，每步有说明。(The calculation of an example of fluid dynamics, HLL format, can be calculated directly, suitable for beginners, easy to understand each step is described.)