Use

A brief description of the procedure

GtoF is effectively a program providing two mesh-transfer tools:

The first tool focuses in rewriting a GMSH file in a proper FEAP syntax, in order to be analyzed and post-processed with the built-in tools and algorithms available in the finite element program.
The second tool intends to export the mesh and some of the numerical variable fields (displacements, strains and stresses) in a proper format to be read and reinterpreted by GMSH, in order to be visualized and rendered with the post-processing tools available on GMSH.

The transfer from GMSH to FEAP is done as follows:

Build a 2D or 3D mesh on GMSH and save it on a *.msh file
Open GtoF, select the tab “GMSH to FEAP”, select the GMSH version on which the mesh was created, select the work space, browse to the *.msh file to transform, and click “OK” to start the transfer.
From the folder “results/2.4(2.5/2.8)”, copy the created mesh file with extension *.mal (typically it conserves the same name of the *.msh file) to the folder where the FEAP input file is located.
In the FEAP Input file, add the instruction “Include *.mal” taking account of having the necessary parameters and boundary conditions before making the numerical analysis… and go on!

The transfer from FEAP to GMSH is done as follows:

In the FEAP Input file, inside the batch analysis instructions add the lines: “Displacements all” and/or “Stress all” in order to write them on the FEAP Output file. It is very important to erase the instruction “noprint” along the document in order to ensure that data-mesh be read by GtoF.
Open GtoF, select the tab “FEAP to GMSH”, select the work space, browse to the FEAP’s Output.txt file that contains the numerical results to export, specify if the mesh was constructed with the FEAP instructions “TIE” or not, select which results you want to visualize in GMSH and click “OK” to start the transfer.
From the folder “results/output-gmsh”, copy the created mesh file with extension *.msh (typically it conserves the same name of the FEAP’s Ouput.txt file) to the folder where the GMSH files are located. GMSH can manipulate this file as you want…

For a detailed description of the whole user procedure, please refer to the manual (GtoF-manual-2017)

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