FEM SolverMystran
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|
Menu location |
---|
Solve → Solver Mystran |
Workbenches |
FEM |
Default shortcut |
S M |
Introduced in version |
0.20 |
See also |
FEM tutorial |
Description
The SolverMystran command enables usage of the MYSTRAN solver. It may be used for:
- Setting analysis parameters.
- Selecting working directory.
- Running the MYSTRAN solver.
Installation
You can get the Mystran Windows executable here. Put the folder where you place Mystran.exe in the Windows's PATH variable.
The SolverMystran also needs two other packages:
- pyNastran - to write out case file.
- hfcMystran - to read in Mystran's NEU result file.
pyNastran can be installed through pip:
- Open a Command terminal in your FreeCAD\bin folder.
- Enter:
python -m pip install pyNastran
- It will be installed in the FreeCAD\bin\lib\site-packages folder.
hfcMystran can be downloaded from its github site as a zip file. Unzip it and place it in the FreeCAD\Mod folder.
Quick test
After installation you can select Utilities → Open FEM examples in the FEM Workbench. Under Solver → Mystran you can find some working Mystran examples.
Usage
ToDo
File function
Under Mod\Fem\femsolver\mystran, there are these files:
add_con_displacement.py
add_con_fixed.py
add_con_force.py
add_femelement_geometry.py
add_femelement_material.py
add_mesh.py
add_solver_control.py
writer.py
solver.py
tasks.py
The function of each file are:
writer.py - main control file
model = BDF()
model = add_solver_control.add_solver_control(pynasf, model, self)
model = add_femelement_geometry.add_femelement_geometry(pynasf, model, self)
model = add_mesh.add_mesh(pynasf, model, self)
model = add_femelement_material.add_femelement_material(pynasf, model, self)
model = add_con_fixed.add_con_fixed(pynasf, model, self)
model = add_con_displacement.add_con_displacement(pynasf, model, self)
model = add_con_force.add_con_force(pynasf, model, self)
BDF() - Create empty case file.
$pyNastran: version=msc
$pyNastran: punch=False
$pyNastran: encoding=utf-8
$pyNastran: nnodes=0
$pyNastran: nelements=0
ENDDATA
add_solver_control.py - Adding EXECUTIVE CONTROL DECK and CASE CONTROL DECK.
$EXECUTIVE CONTROL DECK
SOL 101
CEND
$CASE CONTROL DECK
ECHO = NONE
TITLE = pyNastran for generating solverinput for for Mystran
SUBCASE 1
DISPLACEMENT(SORT1,REAL) = ALL
LOAD = 1
SPC = 1
SPCFORCES(SORT1,REAL) = ALL
STRESS(SORT1,REAL,VONMISES,BILIN) = ALL
SUBTITLE = Default
BEGIN BULK
$PARAMS
PARAM POST -1
add_femelement_geometry.py - Adding GRID cards
add_mesh.py - Adding element cards
add_femelement_material.py - Adding MAT1 card
add_con_fixed.py - Adding SPCADD and SPC1 cards
add_con_displacement.py - Adding SPCADD and SPC1 cards
add_con_force.py - Adding FORCE cards
- Materials: Solid, Fluid, Nonlinear mechanical, Reinforced (concrete); Material editor
- Element geometry: Beam (1D), Beam rotation (1D), Shell (2D), Fluid flow (1D)
Constraints
- Electromagnetic: Electrostatic potential, Current density, Magnetization
- Geometrical: Plane rotation, Section print, Transform
- Mechanical: Fixed, Displacement, Contact, Tie, Spring, Force, Pressure, Centrif, Self weight
- Thermal: Initial temperature, Heat flux, Temperature, Body heat source
- Overwrite Constants: Constant vacuum permittivity
- Solve: CalculiX Standard, Elmer, Mystran, Z88; Equations: Deformation, Elasticity, Electrostatic, Electricforce, Magnetodynamic, Magnetodynamic 2D, Flow, Flux, Heat; Solver: Solver control, Solver run
- Results: Purge, Show; Postprocessing: Apply changes, Pipeline from result, Warp filter, Scalar clip filter, Function cut filter, Region clip filter, Contours filter, Line clip filter, Stress linearization plot, Data at point clip filter, Filter function plane, Filter function sphere, Filter function cylinder, Filter function box
- Additional: Preferences; FEM Install, FEM Mesh, FEM Solver, FEM CalculiX, FEM Concrete; FEM Element Types

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