In this blog I would like to introduce NozzlePro software. Although, nozzle stress analysis is more on mechanical engineering side, nozzle flexibility is very often needed for pipe stress calculation. NozzlePro will not only calculate nozzle stress but it will calculate also nozzle flexibility that can be inserted into piping stress software Caesar II. Bellow is screenshot of nozzle flexibility for the 4″ pipe and 90″ vessel diameter.
Nozzle flexibility is shown on the figure below
Calculated nozzle flexibility can be inserted into Caesar II via spreadsheet. Please see figure below.
Although Caesar II application manual gives guideline on modelling flexible anchors, using Nozzle Pro for modeling flexible anchors can be good alternative and has advantage since stress on vessel nozzle will be evaluated.