Mechanical post-processings

The MechanicalPostProcessings.hxx header declares various utility functions:

• computeVonMisesEquivalentStress: computes the von Mises equivalent stress. For finite strain behaviours, the von Mises equivalent stress of the Cauchy stress is returned.

• computeEigenStresses computes the eigen values of the stress. For finite strain behaviours, the eigen values of the Cauchy stress is returned.

• computeFirstEigenStress computes the first (maximum) eigen value of the stress. For finite strain behaviours, the first eigen value of the Cauchy stress is returned.

• computeStressInGlobalFrame: compute the stress in the global frame. This function is only for orthotropic behaviours. For finite strain behaviours, the first Piola-Kirchhoff stress is returned.

• computeCauchyStressInGlobalFrame: compute the Cauchy stress in the global frame. This function is only valid for orthotropic finite strain behaviours.