Elmer Discussion Forum

Hi again! Alright, it seems as though I had not properly used 2nd order elements, as I previously stated. I had to make GMSH generate a mesh with 2nd order elements, which is reasonable in retrospect, but I got a bit confused by the fact that there is a keyword for setting 2nd order elements in the ...

Hi! I started using Elmer a few weeks ago, and I'm trying to incorporate it in a parameter optimization program, to evaluate different designs of springs automatically. I use GMSH for meshing a STEP file from Autodesk Inventor, which then is converted to Elmer format with ElmerGrid, and finally Elme...

Hi and thanks for your answer! To answer my own question about force setting, Boundary Condition 1 Target Boundaries(1) = 48 Force 3 = 1 End results in a force of 1 N/m^2 on boundary 48 (if one has been using SI units in the model). Adding the keyword Force 3 Normalize by Area = Logical True gives a...

Hi again and thanks for the reply! I'm somewhat familiar with Neumann and Dirichlet conditions and the differences between them, but not knowledgeable enough to feel completely confident swimming around these waters. The ElmerSolver manual seems to indicate that the Boundary Condition-section is for...

Hi again, Thanks for your help! I was not aware that displacements also could be set in the Body Force section. It works well when I set my displacement condition there. However, I can't get the force I want to apply to the center of my geometry to work as a Body Force, if I move that force from Bou...

Hi and thanks for the reply! I did try using MATC expressions, but the problem with that for my application seems to be that I still have to specify which boundaries the BC will (conditionally) apply to. I want to set several boundary conditions, and it doesn't seem allowed to list the same boundary...

Hi! I've recently started using Elmer, and so far I'm impressed with the capabilities of the software. I'm planning to use ElmerGrid and ElmerSolver for 3D linearly elastic mechanical problems. I'm writing a Python code, with the goal of optimizing parameters in CAD files with respect to stresses, a...