FEM Mesh Dependency Test
FEM Mesh Dependency Test
(OP)
Hello All,
I have done an FEM simulation and have this question. Is there a way you can know that your solution (Stress analysis or modal analysis) is mesh independent? I have varied the mesh resolution and each time i am getting a variation mostly in the first and second mode frequencies. The third, fourth, fifth and sixth seem to be changing less. So I am wondering whether the various values i am getting are physical (real) or non-physical (due to numerical errors, etc).
Any hint on how to get a mesh independent solution in FEM would be appreciated.
Thanks in advance!
Jimmy
I have done an FEM simulation and have this question. Is there a way you can know that your solution (Stress analysis or modal analysis) is mesh independent? I have varied the mesh resolution and each time i am getting a variation mostly in the first and second mode frequencies. The third, fourth, fifth and sixth seem to be changing less. So I am wondering whether the various values i am getting are physical (real) or non-physical (due to numerical errors, etc).
Any hint on how to get a mesh independent solution in FEM would be appreciated.
Thanks in advance!
Jimmy





RE: FEM Mesh Dependency Test
Rob Stupplebeen
https://sites.google.com/site/robertkstupplebeen/
RE: FEM Mesh Dependency Test
So as rstupplebeen also says, the mesh you choose should depend on your desired accuracy and available computational power.
RE: FEM Mesh Dependency Test
http://www.eng-tips.com/faqs.cfm?fid=376