I am trying to reproduce a 2D COMSOL hyperelastic simulation that includes contact pair materials. See Youtube video below:
Unfortunately, as soon as I run the analysis, I get the following fail message in the monitor without any additional information on what might cause that problem: Job failed - no results exist!
Could please help!
The ppmx file it linked below!
When I submit it, the analysis runs to completion. Another thing is that the results are bad, mostly due to way too coarse mesh. Also, you should avoid applying BCs to whole parts, use rigid body constraints instead if you need rigid parts.
You have linear elasticity. Hyperelasticity is not yet supported in PrePoMax, but can be added via Keyword Editor.
And avoid direct incrementation, it may cause non-convergence.
I made those changes and added a spring support to prevent rigid body motion of the seal. They did the same in COMSOL.
Comsol_2D_Hyperelastics mod.pmx (245.8 KB)
For smoother contact pressures, I would recommend changing the contact stiffness value.