The OpenSees Community

Hi everyone.
The soil I'm trying to model has positive amount of cohesion and also friction angel. I can't find a proper material in OpenSees. All of the materials only have cohesion or friction angel. The cohesion parameter in Pressure Independent Multi Yield (MIMY) material is only for ground surface. ( '' $cohesi (c) : Apparent cohesion at zero effective confinement. " ).
Do you know any other way I can model this kind of soil ?
Thank you