Define the isotropic or anisotropic elastic behavior via MP commands. Define the material data table (TB,DP) and define up to three constants (TBDATA), as follows:
DP -- Classic Drucker-Prager Plasticity Specifications
NTEMP
:Not used.
NPTS
:Not used.
TBOPT
:Not used.
Constant | Meaning | Property |
---|---|---|
C1 | Force/Area | Cohesion value |
C2 | Angle (in degrees) | Internal friction |
C3 | Angle (in degrees) | Dilatancy |
Temperature-dependent parameters are not allowed.
Example 5.1: Classic Drucker-Prager
MP,EX,1,5000 MP,NUXY,1,0.27 TB,DP,1 TBDATA,1,2.9,32,0 ! Cohesion = 2.9 (use consistent units), ! Angle of internal friction = 32 degrees, ! Dilatancy angle = 0 degrees