Connecting and analyzing individual shells

Hello all,

This is my first time using Karamba3d, and I am trying to analyze 8 precast panels that will be connected by post-tensioning cables. I could not find a way to model the cables; instead, I connect them by ‘Support’ component, so I am not sure if this is the right way to do it. Also, I have the following questions:

1- After previewing the model from ‘ModelView’, the shell seams to be one not eight. Is this accurate?
2- Is there better ways to connect individual shells together?

The goal here is to analyze the panels and generate the post-tensioned (ribs layout).

The file is attached.

Thank you!

Mohammad (64.9 KB)

Hello @alwataid,
you could model the post-tensioning cables by integrating truss elements into the shells. This can be done by adding the endpoints of the truss-elements as inclusion-points (input ‘IPts’) of the ‘Mesh Breps’-component. Then add an ‘Initial Strain’-load on them.
In Karamba3D elements which have identical nodes are rigidly connected by default.
If you want to check whether the post-tensioning forces are sufficient to tie the plates together, check the cross section forces at the seams using the ‘Shell Section’-component.