1. That must have happened inadvertently when I changed materials properties from isotropic to kinematic-hardening. Sorry about that. Already fixed... Now it seems to be on the right track:
  2. I understand friction contact is enough to avoid the weight from flying away because inertial forces remain below friction forces, right? 

* I read your link about "Adequacy of solutions" but find it hard to relate the math reasoning to a practical use of it to find what´s wrong in the model... isn´t there a more intuitive and direct way to find out what´s incorrect and what to do to improve/fix it? Or, at least, to understand how to establish that "maths <-> model" relationship?

* "Section ID set 17..." : How do you spot/identify this in the model? And why is that an improvement?