this was recently proposed to me;
For Div 1 vessels UG-23 (e) was recently changed to allow higher stresses in the range 2 x Sy, where Sy/UTS < 0.7, as in our case here. The same change was made to Div 2. While setting a limit of 3 x S would generally be ok I’ve often referred to this new clause in lieu of performing additional FEA. I don’t know if we will ever see these higher allowable stresses reported in design programs such as Compress or PVElite.
=> This seems to fly in the face of discontinuity and local stress rules.
=>any comments greatly appreciated.
+are any other members using this?
+is it accepted by the jurisdictions (design registration- yes i know they dont look at noz loads but there are many other potential applications)
thx
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urgeo auctorita