II.1.10.25 Honeycomb shear criterion

Depending of the modeling, the component ${\sigma }_{33}$ of Cauchy stress tensor is sometimes zero. Then a simplified “shear” criterion is often used:

Core passes the failure criterion if the following condition is satisfied

The reserve factor is calculated as follows:

and the strength ratio is given by:

This criterion is referred to as “HoneyShear” in FeResPost.