This archived documention refers to the former Drucker-Prager plasticity (TB,DP) material model.
The preferred method for accessing Drucker-Prager plasticity is via the concrete model with the DP option (TB,CONCR,,,,DP). For more information, see Drucker-Prager Concrete in the Material Reference. Also see Extended Drucker-Prager (EDP) and Extended Drucker-Prager Cap in the Material Reference.
The following topics about the classic Drucker-Prager plasticity model are available: