Unfortunately I currently don't have access to pressure vessel code at my company since we don't manufacture pressure vessels. I am simply trying to verify a supplier's calculations/methods.
Is there a standard that governs which method to use when analyzing pressure vessels? If so, did that standard change recently?
I ask because about half of the sources I have looked at require an r/t ratio of 20:1 in order to use the "thin-walled pressure vessel" method(including my 7th Ed...
