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I am trying to carry out an FEA on reinforced concrete columns on Autodesk Inventor Nastran 2025. My analysis consists of reinforced concrete columns. I have modelled each of my columns and have set my loads and constraints. However, when I run the analysis, it does not run as expected. The problem is that the steel and concrete are being treated as two separate components and don't work together (the steel rebars should strengthen the concrete).
Would anyone be able to help with this problem? It would be much appreciated.
Did you define bonded contact between the steel rebars and the concrete? See section 6 in the PDF document attached to my forum post Suggested Reading - Tips and Tricks on the Inventor Nastran forum.
Did you make holes in the concrete for the rebars? (They cannot occupy the same volume! Plus, you need the surface of the hole in the concrete in order to select the faces that are in contact with the outside of the rebars.)
Or if you did not create the rebars using solids, what element type are you using and how did you connect it to the concrete?
John
John Holtz, P.E. Global Product Support Autodesk, Inc.
If not provided already, be sure to indicate the version of Inventor Nastran you are using!
I made holes in the concrete for the rebars and constrained them to the concrete! But I’m not sure how to connect them so that they work together. I will have a look at the PDF and see if that helps,
