Grancha
Industrial
- Aug 19, 2011
- 9
Has anyone successfully simulated axisymmetric shells in workbench?
I know it's possible in Ansys Mechanical using SHELL209 elements, however drawing a line (to create a disc) in the Workbench Geometry editor then trying to bring that into the downstream systems returns an error about no valid geometry being found.
The alternatives are modeling a zero thickness disc, then shell meshing that, or drawing the profile cross-section and simulating an axisymmetric solid. Both of these are much more expensive than using SHELL209.
A compromise would be to model and mesh a sector of the disk then apply cyclic symmetry constraints to the cut edges, unfortunately cyclic symmetry can only be applied to faces (not edges), and applying zero displacement constraints perpendicular to the cut edges results in a stress concentration at the edge which should not be there.
Is there a way to use SHELL209 elements in workbench, or apply symmetry constraints to a shell?
I know it's possible in Ansys Mechanical using SHELL209 elements, however drawing a line (to create a disc) in the Workbench Geometry editor then trying to bring that into the downstream systems returns an error about no valid geometry being found.
The alternatives are modeling a zero thickness disc, then shell meshing that, or drawing the profile cross-section and simulating an axisymmetric solid. Both of these are much more expensive than using SHELL209.
A compromise would be to model and mesh a sector of the disk then apply cyclic symmetry constraints to the cut edges, unfortunately cyclic symmetry can only be applied to faces (not edges), and applying zero displacement constraints perpendicular to the cut edges results in a stress concentration at the edge which should not be there.
Is there a way to use SHELL209 elements in workbench, or apply symmetry constraints to a shell?