Matheus Rodrigues
Mechanical
- May 9, 2018
- 1
Hi,
I am looking for reasons, why the curve of force do not converge with mesh
refinement. (Each calculation converges!)
I am doing a crush analysis of a multi-cell structure for finding peak load and energy absorption using abaqus explicit. My setup is two rigid shell planar plates and a shell extrusion part between them. Some details of my analysis:
- tie at both the ends surface to surface
- bottom plate reference point encastre and top plate rp was able to translate in only one direction. I set an initial velocity and a mass for the top plate.
- General contact (all with self) . Friction coefficient=0.2.
- Get the displacement values from the top plate rp and reaction force values from bottom plate rp.
When I refine the mesh the absorbed energy decays. I am already using a ridiculous small mesh size and the energy still does not converge.
I am looking for reasons, why the curve of force do not converge with mesh
refinement. (Each calculation converges!)
I am doing a crush analysis of a multi-cell structure for finding peak load and energy absorption using abaqus explicit. My setup is two rigid shell planar plates and a shell extrusion part between them. Some details of my analysis:
- tie at both the ends surface to surface
- bottom plate reference point encastre and top plate rp was able to translate in only one direction. I set an initial velocity and a mass for the top plate.
- General contact (all with self) . Friction coefficient=0.2.
- Get the displacement values from the top plate rp and reaction force values from bottom plate rp.
When I refine the mesh the absorbed energy decays. I am already using a ridiculous small mesh size and the energy still does not converge.