and thanks for your feedback
do you mean what is the material of the damper ? if that is what you mean I'm using Structural Steel with the default strength values.
Also, this post is answered by a link to another post (it says page not found if I click on the link located on this post answer) https://forum.ansys.com/discussion/15401/cyclic-loading-with-chaboche-kinematic-hardening

If you have any other post to explain how to set the plasticity, please send it to me, much appreciated