OlevskySinteringStress¶

Source: models/solid_mechanics/plasticity/OlevskySinteringStress.py

Define the Olevsky-Skorohod sintering stress to be used in conjunction with poroplasticity yield functions such as the GTNYieldFunction. The sintering stress is defined as \(\sigma_s = 3 \dfrac{\gamma}{r} \phi^2\), where \(\gamma\) is the surface tension, \(r\) is the size of the particles/powders, and \(\phi\) is the void fraction.