Nozzle Insert (repad) Plate modeling and weld join analysis

Hi Everyone,

Please find the attached image of the vessel for understanding.

In my case, I need to design shell with a serial of nozzles on it. instead of using re-pad for each nozzle, I have to use a thicker plate by opening a shell and replace it with a thicker insert plate.
Please help me, how do consider this for model & where I need to given weld joint input between shell & insert plate for analysis.

I would greatly appreciate your help

You can use "Local Shell Thk." under Miscellaneous (Nozzle Main Tab). Use "Help" for explanations. The constructive details and reinforcement calculation depend on the applicable code.