Hi,

Does any body know if MATLAB functions and scripts can be called into an ABAQUS subroutine like UMAT?

Alankar

Graduate Student, Washington State University, Pullman, WA

Dear all,

I went through the forums and came across one similar topic, posted by alex_612 "Using Matlab to optimize the ABAQUS/Explicit FE mode", but with no replies. So I would like to bring this similar topic up again.

The problem:

1. I would like to open ABAQUS CAE thought MATLAB (which i have managed to do with the dos('command')), and then run a script as well, through MATLAB. I am using MATLAB 7 and would preferably like to run the whole process thought MATLAB.

Hi,

I am using a X-FEM Matlab code found here http://people.civil.gla.ac.uk/~bordas/xfemMatlab.html"]http://people.civil.gla.ac.uk/~bordas/xfemMatlab.html

In branch.m/branch_node.m (both functions of radius r and angle theta) crack tip fields are defined...and questions arise.

% Functions

f(1) = r2 * st2 ;
f(2) = r2 * ct2;
f(3) = r2 * st2 * ct;
f(4) = r2 * ct2 * ct;

-these functions are not the same defined e.g. in (Fleming,1997) or (Sukumar,2000) etc...why?

 their derivatives are then considered:

(here for function f(3))