Define GSK material using Mohr-Coulomb or Hoek-Brown.. is it possible in Plaxis?

Question

Hello all... 
 I need to use GSK material in Plaxis, I can not find it in Plaxis, so I was thinking maybe Mohr-Coulomb or Hoek-Brown could be used and modified to give GSK behaviour, is it possible? 
 
 Thanks, 
 Mina

Stefanos Papavasileiou · Answer

Dear Mina, 
 You can always define your own User Defined Soil Models. Here's an article with more information about it (also found in our manuals): communities.bentley.com/.../plaxis-user-defined-soil-models