Hi all,

I'm calculating an FRP piping system using ISO 14692.
The design factors is:

f2 = 0.67 (SUS CASE)

Partial factors:

f2 = 0.83 (SUS + T )
f2 = 0.89 (OCC)

I want to know if CAESAR II is applying automatically this values for each type case so no need to recalculating the allowable stress in the stress summary results.

Or I have to define all cases as OCC then using the following occasional load factors:

k = 1.24 for (SUS + T)
k = 1.33 for (OCC)

Best Regards,

the most conservative way is to set your f2 on 0.67 and calculate all cases based on that. the allowable stress for an Ope. case would always be f1*f2*f3*Sh, Sh is the hoop stress for long term analysis and you should take it form the stress envelope given by the vendor.
I doubt if you are allowed to use any OCC factor for the allowable stress when you are checking the OCC cases.

If you wish to use these partial factors in CAESAR II put the 0.67 in the piping inpu screen as the System Design Factor. Then, in the Load Case Options, confirm the proper multipliers are listed for the "Occasional Load Factor":
SUS=1
OPE=1.24
OCC=1.33
These numbers are multipliers of the System Design Factor.

You may have to update these if you modify your load cases.

(You say "SUS+T", I say "OPE" but I think we are saying the same thing.

Thanks for your answers,

I said "SUS + T" because in Iso 14692 it's called: (Sustained including thermal loads)but for ASME and other codes I say "OPE" so yes we are talking about the same thing.

I will use the occasional load case factor but there is no problem if I change an "OPE" case into (OCC)?
Because I know that "OPE" cases are calculated with algebraic method but "OCC" with scalar method.

Best Regards,