Dear Mandeep,

Today 29/3/14 5 pm indiatime, I sent the problem with four nozzlepro input files to email "support@paulin.com" for Tony Paulin & You to review the same.

Ours is a large diameter thin pipe (D/T >100) low temperature application. Even for D/T <100, we are finding SIFs much higher in FESIF compared with ASME B31.3 App-D SIF; which one to choose for SIF input in Caesar-II analysis ?

When I asked for opinion from one engineer here in India, he told if you want a democratic answer, go for ASME APP-D - as majority will find it comfortable like a student appearing in IIT entrance test for IITs in India failing miserably passes with flying colors flashing a tribal card.

But, in real life, democracy can't replace the truth! So, we want a true answer - is D/T > 50 or D/T > 100 - which is the real cut-off for FEA derived SIF for a flexible piping application ?
regards,
sam