Hello,
I'm trying to use the Drucker-Prager model to study polymer material behaviour and failure under compression in conjunction with Ductile damage criteria.
What I'm struggling with is that Abaqus wants a hardening specification, while I want just perfect plasticity, i.e. no hardening before the onset of damage.
Would it be right just to specify only one point in hardening table:
Yield stress and 0 absolute plastic strain?