AssociativeIsotropicPlasticHardening

Source: models/solid_mechanics/plasticity/AssociativeIsotropicPlasticHardening.py

Map the flow rate (i.e., the consistency parameter in the KKT conditions) to the rate of internal variables. This object calculates the rate of equivalent plastic strain following associative flow rule, i.e. \(\dot{\bar{\varepsilon}}_p = - \dot{\gamma} \frac{\partial f}{\partial k}\), where \(\dot{\bar{\varepsilon}}_p\) is the equivalent plastic strain, \(\dot{\gamma}\) is the flow rate, \(f\) is the yield function, and \(k\) is the isotropic hardening.

Inputs

flow_rate — input · Scalar · required

Flow rate

isotropic_hardening_direction — input · Scalar · required

Direction of associative isotropic hardening which can be calculated using Normality.

Outputs

equivalent_plastic_strain_rate — output · Scalar · required

Rate of equivalent plastic strain