适合ABAQUS使用的邓肯张模型代码

Riemann Solvers and Numerical Methods for Fluid Dynamics,

CPML在地震波模拟中的实现源码。主要包括了二维和三维交错网格有限差分及其完全匹配层实现。(Group progam for Seismic wave modeling.CPML implemention in finite difference of seismic wave modeling. )

fortran语言写的二维傅里叶变换程序(Two dimensional Fourier transform program written in FORTRAN language)

使用fortran编写的地面地震勘探观测系统（带卷头）。(Ground seismic exploration system (with the roll head) written in fortran.)

说明：  uhard subroutine code in fortran for abaqus

说明：  实现ansys apdl悬臂梁的瞬态分析命令流(Realizing the command flow of ANSYS APDL cantilever beam transient analysis)

用fortran 70实现数值积分，并实例计算了三个函数，导出了积分值和误差(The numerical integration is realized by FORTRAN 70, and three functions are calculated with examples. The integral values and errors are derived.)

用于学习和适用fortran中的IMSL程序库。(Fortran for learning and applying the IMSL libraries.)

用于矩阵的一种cholesky分解方法，第一次上传请多关照(cholesky method for matrix decomposition)

umat for hot stamping use uexpan in abaqus