**process cohesion_torsor

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`**process cohesion_torsor`#

Description#

This post computes the equivalent cohesion torsor of the internal nodal forces (summed over a specified nset) on the specified elset (the elset corresponds to the isolated body).

Syntax#

**process cohesion_torsor: \(~\,\) *point vector \(~\,\) *file file \(~\,\) *nset cut_nset

*point vector: is the position where the momentum is computed (point \(O\)). The output gives the coordinates of point \(O\), the 3 components of the resultant and the 3 components of the momentum for each time step.
*file file: name of the output file.
*nset cut_nset: is a nset that cuts the body. It must corresponds to a boundary of the elset specified with **elset.

Example#

The following example computes the torsor of the action of the right part of the structure on the left part. cut is a nset that fully separates the elsets left and right.

***global_post_processing
 **elset left
 **file integ
 **process cohesion_torsor
  *point (0. 6. 6.)
  *file cohesion_torsor.test
  *nset cut