Hi everyone,
I need to export the global stiffness matrix without boundary conditions for beam networks for some research project, but I am not interested in the actual simulation.
1. I can already export what I desire (see attached), but how can I stop Elmer from starting the simulation?
2. I assume the global stiffness matrix is given in the global coordinate system and since I export it for beams the degrees of freedom are ordered for each node like this: displacement in x,y,z, moments due to torsion/bending around x,y,z. Correct?
Thanks and regards
Stefan
export stiffness matrix without starting simulation
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export stiffness matrix without starting simulation
- Attachments
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- triangle.msh
- (443 Bytes) Downloaded 5 times
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- export_stiffness_matrix.sif
- (2.49 KiB) Downloaded 12 times
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Re: export stiffness matrix without starting simulation
You could just kill the process after it starts or try to use the solver control
Execute Solver = Never
there are lots of option such as always, after simulation, before simulation, never, ...
Execute Solver = Never
there are lots of option such as always, after simulation, before simulation, never, ...
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Re: export stiffness matrix without starting simulation
Hi,
If the solver is never executed there will unfortunately be no stiffness matrix. You could however, try this keyword in Solver section:
There might be other ways, like setting linear system iterations to zero etc. but this one should be clean. Codewise it is DefUtils.F90 line ~3519. Had to check it up since this is rarely used.
-Peter
If the solver is never executed there will unfortunately be no stiffness matrix. You could however, try this keyword in Solver section:
Code: Select all
Linear System Solver Disabled = Logical True
-Peter
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Re: export stiffness matrix without starting simulation
@Peter Thanks. That's what I was looking for.