I am trying to model a confined concrete section and I want to use non-linear behavior of the concrete material. One of the options to do that is to apply the Drucker-Prager material model, which includes uniaxial and biaxial compressive and tensile strength as input material properties.
I saw that in Ansys 18.2 a Drucker-Prager concrete model is available which combines Drucker-Prager surface for the compressive side and Rankine tension surface, which may represent better the overall behavior. However, I am not sure how to activate the combined model rather than just the Drucker-Prager option. Does anyone have experience with this for application in static structural analysis?