<POROUS_CRITERION> fkm#
Description#
This criterion is as developed by Fleck, Kuhn, and McMeeking [M29] for metal powder compaction.
\[\frac{6J_2 + \sqrt{27J_2^2 + 4I^2}}{6\alpha}\]
with coefficients \(f_max\), offset and \(f_s\) named
fmax, offset and fs.
Syntax#
*porous_criterion fkm
\(~\,\) coefficients
\(~\,\) …
Example#
A simple example from a test case is given below
*porous_criterion fkm
fmax
offset
fs