I may not be familiar with the terminology, but when you say an internal node, is that breaking up the member in two, or is there a way to mesh the line, similar to how in SAP2000 you have the line object that you can automatically mesh it without breaking up the member into multiple line elements.
Thank you very much for the detailed explanation. Is there any work around to avoiding this effect? I’m just trying to see if there are potentially any unforeseen impacts with this behaviour with larger structural systems.
It’s not every structure/structural member that will be sensitive to p-delta effects, so I guess how can one rely on the analysis results, or should the default with this software be to always provide four elements whenever a member will have significant axial and bending effects?