Abaqus script to find centre of the circle

[Bozo_Sam]

Hello,

Although my proficiency in Python is limited, I would greatly appreciate a simple script that can verify the edges of assembly instances and generate a central reference point. With this tool, I can easily create multiple connectors in a large assembly.

Thank you very much.

 

[FEA way]

If you want it to be placed in the center of mass of an assembly, you can find the coordinates of that point using the getMassProperties(...) method. It will return the centerOfMass value, among the others.

 

[oldNail]

There are already points available at the centers of arcs and circles. Can you explain a little more detail?

 

[Bozo_Sam]

Sorry for the long silene and thanks for both replies. Basically what I am trying to do is automate the connections between holes, mimicking the bolt connection, as shown on the picture.

The sequence of doing that, at least in my mind would be the following

1. Establish the Reference point, needed for the Coupling constraint, in the middle of the circular edge.
2. Connect the circular edge to the Reference point with coupling constraint.
3. Create a Wire connection between the Reference points in a certain proximity.
4. Assign the BEAM connector to the wires.

So creating the reference point in the middle of the circle is the first step. Hope that clarifies a few things.

 

[SWComposites]

Don’t model holes.
Remove them, connect nodes placed at the center of the holes.
The typical wagon wheel rigid element modelling with holes just doesn’t give correct stress at the holes.