Hello,

Can anyone please advise me for how CAESARII is caluculating Hoop allowable stress and axial stresses for FRP piping using ISO-14962:2017.

I already ploted the design envelop on an excel sheet, and when i insert the values of the calculated stresses (Axial, Hoop), i found it in the safe region for its relevant load case;however, CAESAR II reports different values for allowables which may be out of the design envelope boundary.

i need a sort of equation to calculate manually the allowable hoop stress and allowable axial stress, based on CAESAR II output stresses and the design envelope i have.

Thanks