Posted by: sam
Nozzle Stiffness for reinforced nozzles - 06/02/06 06:21 AM
Is there any contribution of reinforcement on WRC-107/API-650 nozzle stiffness?
regards,
sam
Posted by: Richard Ay
Re: Nozzle Stiffness for reinforced nozzles - 06/03/06 08:28 AM
Yes.
For WRC-297, the pad thickness is added to the vessel shell thickness, before determining the coefficients or interpolating from the figures.
In API-650, one set of curves assumes no reinforcement, the other set of curves assumes a pad equal in thickness to the shell thickness.
Posted by: sam
Re: Nozzle Stiffness for reinforced nozzles - 06/05/06 04:42 AM
Thanks,Richard Ay, for your reply.
It seems right to be conservative by adding reinf pad thickness to vessel thickness for arriving at WRC-297 nozzle stiffness - a bit higher stiffness than in reality or more realistic FEA simulation, may result.
regards,
sam