Why the Drucker-Prager/Cap plasticity model (implemented in Abaqus) does not have hardening (perfect plasticity) on the Drucker-Prager surface?

For a while our research group has been using a constitutive model, namely, Drucker-Prager/Cap implemented in Abaqus. It is a plasticity model with multiple yield surfaces. One of these surfaces...

03 December 2018 4,430 6 View