Gauss points and integration points

[pettervu]

Hi everyone,

As I mentioned in a previous thread, I am trying to create my own J-integral post-processor. I've managed to create a script that creates the contours which was my first problem.

At first I assumed that the integration points in ABAQUS were ordinary Gauss points, and hence created the shape functions for my eight noded reduced plane strain elements (CPE8R). But while examining the coordinates I get for these Gauss points and the integration points in ABAQUS I've noticed that they are quite different.

My question is therefor; is the integration points in ABAQUS standard Gauss points, or are they something else?

I've used 2x2 integration points with local coordinates +/- 1/sqrt(3)

 

[pettervu]

Never mind.

The integration points are ordinary Gauss points. Just had a problem when reading data from the odb. I think the cause is that when using nodeDataLabel the list of nodes is automatically sorted. Hence, I didn't have the nodal coordinates in the correct order when trying to calculate the Gaussian coordinates.