Reinforcement Area on Shell
Reinforcement Area on Shell
(OP)
Hello Everyone.
Top dish opening has reinforcement area falling on shell, is it acceptable or does code says anything about it???
Does the radiography of top dish to shell comes in to picture???
Thanks.
Top dish opening has reinforcement area falling on shell, is it acceptable or does code says anything about it???
Does the radiography of top dish to shell comes in to picture???
Thanks.





RE: Reinforcement Area on Shell
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Reinforcement Area on Shell
Attach file shows that nozzle reinforcement area falling on shell also.
Thanks.
RE: Reinforcement Area on Shell
RE: Reinforcement Area on Shell
RE: Reinforcement Area on Shell
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Reinforcement Area on Shell
RE: Reinforcement Area on Shell
RE: Reinforcement Area on Shell
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: Reinforcement Area on Shell
Nevertheless, the decision is not mine - check with your AI and/or the jurisdiction where your vessel will be located. They have the final call.
RE: Reinforcement Area on Shell
RE: Reinforcement Area on Shell
Regards
r6155
RE: Reinforcement Area on Shell
RE: Reinforcement Area on Shell
RE: Reinforcement Area on Shell
Considering the subsequent changes to Appendix 1 and the new rules in Division 2, I'm not sure that I would read too much into that interpretation.
RE: Reinforcement Area on Shell
In terms of buckling, a nozzle in the knuckle region acts as a stiffener and actually improves the stability of the knuckle region.
In terms of plastic failure, the reinforcement calculation uses minimum buckling thickness rather than the much smaller minimum pressure thickness of the knuckle. As a result the local membrane stresses in the head and the crotch corner stress will be very conservative.
I think the interpretation exists because ASME VIII-1 head knuckle regions are so chunky compared to other codes.
As TGS4 says, I definitely wouldn't use it with parts of the code that have been revised since the interpretation was published.