I created a plain two-dimensional model in MATLAB using the coordinates of the boundary.
I want to
1. Mesh the model with a dedicated meshing software.
2. Export the mesh to FEM software (e.g. Abaqus) and do the FEM analysis.
3. Return the output back to MATLAB for further analysis
Please,how can go about this?
I am thinking:
(i) Which mesher can take in MATLAB figure or model, and mesh the MATLAB model? That mesher should be able to communicate with FEM software.
(ii) How can I import FEM output into MATLAB for further analysis?
Thank you.
Portability of FE models is one of the biggest issues with FEA. Commercial FE software tools offer import and export of data in different formats. But, you can not use them directly in MATLAB. You have to write wrappers for transferring data from one software to the other.
If you are interested only in smaller problems, then my suggestion is to write your own finite element analysis code in MATLAB. If you do this, then you can completely avoid writing codes for data transfer. Moreover, there are some open source meshing subroutines available for MATLAB. You can use them to generate FE meshes and do the analysis in MATLAB itself.
Or, if you want to use FE software, then you would be better off by choosing a software where you can do all the three stages of FEA - geometry modelling, meshing and performing the analysis. You can then export results to MATLAB for further analysis.
Hey,
for reading in the results from Abaqus I would refer you to:
http://www.abaqus2matlab.com/
The file input parser can be easily written in Matlab to read/write arbitrary txt files. You would just need commands such as textscan or fgetl etc.
The FEATool Multiphysics ( https://www.featool.com ) actually does all this. That is interfaces PDE, FEM, meshing tools (DistMesh, Gmsh, and Triangle) and solvers (UMFPACK, FEniCS, OpenFOAM) together in a MATLAB FEM simulation toolbox with an easy to use GUI. If you wish you can also export your mesh and results in a variety of formats and use in other analysis tools.
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