Hello Chamade,
Okay, yes I've heard about these different constraints. But I wanted to see with a rather simple calculation if I could come across something "similar", a mistake on my part.
Yes indeed, as I said in another post I used a "Soldered connection property" function and I had a result very comparable to the surface model.
Thank you very much for your help, even if your participation in this workshop dates back a long time it does not prevent you from providing very valuable advice.
Regarding the simulations, I remain of the opinion that they only serve to obtain an order of magnitude / a first idea of how our part behaves.
In any case, a real model will be created (on the other hand 1m*1m*0.2m), this is included in the project process.
For the moment I have no other questions, but it would be soon.
Thank you all for your help.
Kind regards
Julian