I am analyzing a line with the pressure of 40 kg/cm^2.
I wanted to check the nozzles with WRC 297.
so I import the loads from my file to the wrc.
when I saw the result I saw that the nozzle is failed in the sustain case and it is just because of the internal pressure of the line.
but when I run the caesar file and i looked at the stress report the maximum hoop stress ratio was so less!!
if the line has got problem with this pressure, should not I get a hint from the stress report?
or it is just the effect of the pressure thrust on the nozzles?
please advise?

kind regards