7.2 Critical state (clay) plasticity model in Abaqus/Explicit

Products: Abaqus/Explicit  Abaqus/CAE  

Benefits: The clay plasticity model, which can be used to model cohesionless soil behavior in geotechnical applications, is now available in Abaqus/Explicit.

Description: Abaqus/Explicit now provides the clay plasticity model that previously was available only in Abaqus/Standard. The constitutive model is an extension of the critical state models originally developed by Roscoe and his coworkers at Cambridge. The model describes the inelastic behavior of the material by a yield function that depends on the three stress invariants, an associated flow assumption to define the plastic strain rate, and a strain hardening theory that changes the size of the yield surface according to the inelastic volumetric strain. Only the piecewise linear form of the hardening rule law is available in Abaqus/Explicit.

Import between Abaqus/Standard and Abaqus/Explicit is now supported for the clay plasticity model with piecewise linear hardening.

Abaqus/CAE Usage: 
Property module:
    Material editor: MechanicalPlasticityClay Plasticity: Hardening: Tabular,
   SuboptionsClay Hardening
References:

Abaqus Analysis User's Manual

Abaqus/CAE User's Manual

Abaqus Keywords Reference Manual

Abaqus Verification Manual

Abaqus Theory Manual