Can a material be modeled in PLAXIS with a predefined curved relationship between stress and shear strength?
Mohr-Coulomb and HSS models assume either independent or linear shear strength relative to normal effective stress.
Thanks!
Dear Navid,
The only standard model we have with a curved relationship between stress and shear strength is the Hoek-Brown model for rock. If that model doesn't suit your needs, and simplifying the desired behaviour with a linear relation doesn't work for you either, the only remaining option would be to write your own material model (a so-called User Defined Soil Model).
With kind regards,
Dennis Waterman