Retrieving results at integration points (Gauss pts)

[derne058]

Hi everyone,

I'm interested in retrieving results (stresses and deformation) at integration points for SOLID185 element.
So far I used the commands:

mapdl.eresx("NO")

to output the results.
I noticed that the number of values I get (stress and deformation in this case) are the same as the number of nodes of my FE model instead of being equal to "number_of_elements x number_of_nodes_in_1_element" (i.e., 2 elements --> number_of_Gauss_pts = 2 x 8 = 16).
Do you know methods/commands to achieve my goal?

[mikerife]

Hi @derne058
Let's break this into two parts. First deformations are solved at the nodes, not at the integration points. So those are not extrapolated from the integration points to the nodes and eresx has no effect.

Second there is a bit of tricky nomenclature here. There is a difference in stress and strain with respect to "nodal" and "element nodal" results. Nodal results are averaged in some way. Element nodal are not. The integration stress/strain element nodal results are extrapolated/copied. So be sure to compare what a element result stress/strain listing gives in terms of number of values versus the number of integration points. And not a nodal result.

MIke