Hi Peter, thank you for your answer. I worked on this the last days and it seemed to fit quite good. But with this my task hasn't finished, because now i try to model the material behaviour of a confined specimen which is also made of epoxy resin.
My professor told me that i should try to use the Drucker-Prager-Model for modelling the material behaviour for both tests (unconfined/confined). I think i read a lot about it, but i still don't know how to work with it in ANSYS. How do i get the necessary parameters for Ansys? I couldn't find any helpful information for using this model in ANSYS.
I still only got the experimental data which i mentionend in my first post.
Thank you for your help!