Select one of the following methods to calculate the nozzle stress concentration factors.
None
Stress concentration factors are not calculated.
Fillet Radius
The software uses the fillet radius between the nozzle and the vessel shell to calculate the stress concentration factors Kn and Kb according to Appendix B of the WRC 107 bulletin. Enter the fillet radius value in Fillet Radius Between Vessel and Nozzle. A value of 0 sets Kn and Kb to 1.0.
Kn/Kb
The software uses the stress concentration factors Kn and Kb in a fatigue analysis. Enter the Kn and Kb values in Nozzle Kn and Nozzle Kb.