Hi

We are exploring if we can use OOFEM to model a powder compaction problem. We understand that the Drucker-Prager model is readily supported, but the cap is not implemented. We are right now checking the DP model for powder compaction, where the setup has a frictionless punch and die bottom but has friction in the die walls and powder.

For the above context, to test the frictional contact boundary condition, we tried the tutorial problem shared on the OOFEM website. The shared example works as is when the friction value used is 0.0. But it fails when we use a non-zero friction value like 0.1. We need your input on whether this is supported. The modified solver input file is attached.