Hello! I am modeling for practice park bench made out of steel C section 50x20 profiles. I modeled part with Section sweep and meshed it with S4R elements. Yield strenght is 355 N/mm2. C sections should be connected with welds?.

Questions are:

Do I need to somehow smoothen edge to surface conections?

Can I model this in a way that will better represent real life situation?

How would you model this problem?