<POROUS_CRITERION> modified_rousselier

Description

\[\phi=\frac{\sqrt{3J_2}}{1-f} + \sigma_1 f D \exp\left( \frac{q_2 I_1}{3(1-f)\sigma_1 } \right) -\sigma_\star\]

where \(q_2\), \(D\) and \(\sigma_1\) are coefficients named q2, D and sigma1.

Syntax

*porous_criterion modified_rousselier \(~\,\) coefficients \(~\,\) …

Example

A simple example from a test case is given below

*porous_criterion modified_rousselier
  sigma1  200.
  D      0.85
  q2