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#64551 - 10/08/15 08:52 AM Is k=1.2 occasional (Pm +Pl) allowable in WRC-107 wrong ?
sam Offline
Member

Registered: 02/25/04
Posts: 643
Loc: Maharastra, India
Is k=1.2 occasional (Pm +Pl) allowable stress multiplier in WRC-107 module as per ASME Sec-VIII Div-2 Part-5 ? Our code jurisdiction is either ASME Sec-VIII Div-2 or B31.1 or B31.3.

When WRC-107/FEA is carried out, if we can take allowable stress Sm from the applicable codes, can’t we take load categorization from the respective codes?

If not, is the k=1.2 occasional (Pm +Pl) allowable stress multiplier consideration in FEATOOLS, NozzlePro, FE/Pipe faulty ?
Reg,
sam
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#64595 - 10/14/15 05:09 AM Re: Is k=1.2 occasional (Pm +Pl) allowable in WRC-107 wrong ? [Re: sam]
sam Offline
Member

Registered: 02/25/04
Posts: 643
Loc: Maharastra, India
In FEPIPE/NOzzlePro UPdate2014 pages 179-180, justification for using k = 1.2 is there.

But, some inspectors/auditors want k=1 for both wind & seismic at working stress level, with working pressure @ 0.9*P.

regards,
sam
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