I need to model a riveted structure. Especially for the joints the model should give a good representation of the real load bearing behaviour.
In Abaqus there is the option to use mesh-independent fasteners with the *Fastener command. This is not implemented in Calculix (yet).
I just want to avoid modeling each rivet individually in detail. An option would be to use a shell model for global behaviour of the structure and submodelling for critical details.
How would you approach the problem using Calculix?