This section gives you information about the visualization results.
What is the difference between
Hide/Show and Activate/Deactivate?
How do you visualize the mesh?
What are the authorized position according to a
visualization type?
How are Von Mises Stress computed?
How are local extrema computed?
What is the difference between Hide/Show
and Activate/Deactivate?

Note that you can visualize and modify elements you
have hidden (using the Hide/Show contextual menu) in the
invisible space (as a second workspace). 
You can visualize:
mesh, if you are working with the Nodes and Elements set
deformed mesh, if you are working with an Analysis Case set
Launch the computation.
To do this, click the Compute icon, select the Mesh only option and click OK in the Compute dialog box. 

For more information, refer to Results Computation. 
Rightclick the Nodes and Elements set from the specification tree and select Mesh Visualization.
If you select the Mesh Visualization
contextual menu before the computation, a warning message appears to
inform you that the mesh needs to be updated. If you decide to update the mesh, a mesh only computation is launched. 
Launch the computation.
To do this, click the Compute icon, select the All option and click OK in the Compute dialog box. 

For more information, refer to Results Computation. 
Generate a Deformed Mesh image on the part.
For more information, refer to
Visualizing Deformations.
The authorized positions depend on the representation type:
VISU Type 
Node Position 
Element Position 

Node 
Edge of element 
Face of element 
Element 
Gauss point of element 
Center of element 
Node of element 

Average iso 







Discontinuous iso 







Fringe 







Symbol 







Text 







The solver process gives results only for certain positions
that are not always authorized or really useful.
Results need to be posttreated.
The posttreatment can be either a smoothing (element to node) or an extrapolation (node to element).
For a smoothing posttreatment, the way of computing average values changed according to the different versions of CATIA:

You can obtain a Von Mises Stress (nodal values) image using the:
Dedicated icon.
To do this, click Von Mises Stress in the Image toolbar.

Image edition (only available with the ELFINI Structural Analysis (EST) product).

The Von Mises Stress (nodal values) values displayed using the Von Mises Stress icon and the Stress Von Mises (nodal values) values displayed from the edition of the Stress principal tensor symbol image can locally produce different results due to two computation modes:
In the first case (icon), the solver computation gives directly the result and then the postprocessing performs a smoothing (element to node).
In the second case (edit), the solver calculates the principal stress tensor, then the postprocessing performs a smoothing (element to node), diagonalizes the matrix, and calculates values using the following formula: where , and are the principal stresses.
The first method requires less time and less performance.
A node (or an element) is a local extrema if it is an extrema compared to the nodes (or elements) belonging to the two rings. The maximum local extrema are sorted in descending order. The minimum local extrema are sorted in ascending order. These rings are defined as follow:
For a node:
For an element: