Beginning with post-processing Paravis module in Salome-Meca

This post presents some useful tricks to get started with Salome-Meca Pavavis module (or Paraview). Let’s assume you already have followed this tutorial or by another way, got a Code_Aster rmed result file open in Paravis.

Deformed Shape

As shown in previous posts, it is possible to show the displacement field as a magnitude scalar map. But to show the deformed shape, one needs to create a new display data entry. To do so, select the rmed view in the pipeline browser, then in the main menu Filters -> Common -> Wrap By Vector.

Filter Wrap By Vector to display deformed shape in Paravis Salome-Meca module or Paraview on Windows

A new wrapped entry appears in the pipeline browser. Click on Apply button to display the wrapped field. To amplify the deformed shape, use the Scale Factor slider-button and click Apply button again to validate the modifications.

Code_Aster Deformed shape in Paravis Salome-Meca module or Paraview on Windows

Nodal Element fields ELNO

ELNO corresponds to a field stored by element, one value for each element node. These fields cannot be displayed directly, as it is shown in this picture:

ELGA and ELNO fields not directly accessible in Paravis Salome-Meca module or Paraview on Windows

A new entry should be created.  To do so, select the rmed view in the pipeline browser, then in the main menu Filters -> Mechanics -> ELNO field To Surface.

Access  ELNO fields in Paravis Salome-Meca module or Paraview on Windows

A new Surface view appears in the pipeline browser. Click on Apply button to display this field. It should be now possible to access ELNO fields. Let’s select SIEQ_ELNO,

Display Code_Aster SIEQ_ELNO field in Paravis Salome-Meca module or Paraview on Windows

and choose Coloring by VMIS, to display equivalent von Mises stress field.

Display Code_Aster VMIS von Mises field in Paravis Salome-Meca module or Paraview on Windows

Gauss point Element fields ELGA

ELGA corresponds to a field stored by element, one value for each element Gauss point. As it is used at resolution time, SIEF_ELGA stress field is always present in a Code_Aster non-linear result, and thus more accurate that post-processed SIEF_ELNO or SIEF_NODE that may lead to  interpolation smoothing side effects.

But as ELNO, ELGA fields cannot be displayed directly and a new entry should be created. To do so, select again the rmed original view in the pipeline browser, then in the main menu Filter -> Mechanics -> ELGA field To Point Sprite.

Access  ELGA fields in Paravis Salome-Meca module or Paraview on Windows

A new Point representation view appears in the pipeline browser. Click on Apply button. It should be now possible to access SIEF_ELGA field.

Display Code_Aster SIEF_ELGA field as point sprite in Paravis Salome-Meca module or Paraview on Windows

We can for example display SIXX, corresponding to the stress tensor normal component in direction X.

Display Code_Aster SIXX component as point sprite in Paravis Salome-Meca module or Paraview on Windows

Point size can be adjusted after switching to representation Points.

Increase SIEF_ELGA point sprite size in Paravis Salome-Meca module or Paraview on Windows

Conclusion

Post-processing Filters menu is one of the most important feature to begin with Salome-Meca Paravis module. Considering that Paravis module is an embedded Paraview in Salome-Meca, one can have a look to Paraview wiki for more advanced features.

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