When checking for local load stresses in nozzle/vessel junction using
WRC297, we model nozzle thru' WRC297 nozzle input pallete. This defines
flexible restraint at the defined nozzle junction. We can then export the
loads into 297 module to calculate the shear stress values for
circumferential & longitudinal planes in the vessel membranes & nozzle.

However, unlike WRC107, we do NOT get the stress summation for these
components. However, for all these components, we get 2 times the maximum
shear stress intensity values. Does this mean that these shear stress
intensity values at the 4 points on the membrane, have to be compared with
the yield stress value directly (per MAX. SHEAR STRESS THEORY) and not go
for stress summations? Also what about the Hoop stress value? OR should the
PRINCIPAL stresses be further computed manually ny summing up the [(hoop
stress + Long. stress*)/2] term to the sqrt[(long. stress*-hoop stress)/2 +
2* max shear stress intensity] and then compare this value with the yield
stress?

* considering that long. stress = axial stresses along the longitudinal
plane ???

Would appreciate if somebody can throw more light on this issue of code
compliance viz-a-viz WRC297 bulletin.