PerzynaPlasticFlowRate

Source: models/solid_mechanics/plasticity/PerzynaPlasticFlowRate.py

Perzyna’s viscous approximation of the consistent yield envelope (with a power law), i.e. \(\dot{\gamma} = \left( \frac{\left< f \right>}{\eta} \right)^n\), where \(f\) is the yield function, \(\eta\) is the reference stress, and \(n\) is the power-law exponent.

Inputs

yield_function — input · Scalar · required

Yield function

Outputs

flow_rate — output · Scalar · required

Flow rate

Parameters

reference_stress — parameter · Scalar · required

Reference stress

exponent — parameter · Scalar · required

Power-law exponent