**process selective_int

Description

This post-processing recomputes fields (only second-order tensors, e.g., stress and strain) to remove fluctuations in the spherical part (typically pressure) within each element. The updated value \(\ten A_s\) is computed by combining the deviatoric part of \(\ten A\) with the average of its trace over the element.

\[\ten A_s = \ten A^{dev} + \dfrac{1}{\Omega_e}\int \trace{\ten A} dV\]

where \(\Omega_e\) is the elementary volume (or surface in case of 2D elements).

Syntax

**process selective_int \(~\,\) *var_name var

The name of the output variable will be vars

Example

****post_processing
 ***global_post_processing
  **file integ
  **elset ALL_ELEMENT
  **process selective_int
   *var_name sig
****return