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Allowable changes in the presence of SIF (SUS case)

Allowable changes in the presence of SIF (SUS case)

Allowable changes in the presence of SIF (SUS case)

(OP)
Hi, I perform stress calculations using Coade Caesar II. I noticed that in sustained cases allowables undergo variations (they diminish) at the points with SIF (stress intensification factor). Though I can understand why I cannot find a B31.3 formula or paragraph that justifies this behaviour. Could you help me?
Many thanks

RE: Allowable changes in the presence of SIF (SUS case)

You're likely looking at a model where the "weld joint efficiency" comes into play.  Review the (B31.3) Code for the usage of "w".

Richard Ay
COADE, Inc.

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