Good morning everyone.
I would like to run a simulation of earth under influence of gravity. For this I made a simple model in the shape of a cuboid first.
I run a simulation with nonlinear material behaviour and an elastic isotropic material to check if the constraints are correct. This simulation runs without any problems.
Next I changed the setup of the element definition to Drucker - Prager and used a self-defined material model (material model was set to Drucker - Prager).
This model does not converge.
I suspect the error in the material properties due to the fact I have not changed anything else.
Sadly I do not know which material properties are absolute necessary to input. For this I tried some different values but no combination worked.
(I remeshed the model but this does not help either.)
A quick look into summary and log reports showed no errors. The convergence was just not reached in time.
Maybe someone has experience with Drucker-Prager analysis or could tell me some material properties which should work?
Attached you can find my simulation if needed.
(I was not able to upload the archive of the simulation so I uploaded a zip - file.
I hope this does work too.)