Pipe anchor support SIF (ASME B31.3 integral attachments)

[jkal321]

Hi,

I am running ASME B31.3 std CAESARII pipe stress analysis. The stress team is using and adding an SIF=4 at pipe anchors, 3-ways or a single axial support, to reserve enough capacity at the attachment point to qualify a lug at Y-3000 (ASME III Div 1).

Worked on multiple projects and this SIF has never been used. Is this too conservative and is it required? Could I ignore it or avoid using it? Could I justify not using it?

Thanks,

 

[RVAmeche]

Is this SIF part of an internal or client requirement? If so, their may be required to use it.

I haven't come across that before, but it's possible they did some FEA and found that to be a conservative value for typical designs.

You say the stress team is adding those SIFs but you're running the analysis? Asking them where it came from would be the simplest bet.

 

[saplanti]

I have answered your question on COADE CAESAR II discussion forum. Please check.