I am fairly new to pipe stressing and seeking some clarification as to the correct application of specifying the SIF on a bend with a trunnion.
If I have a bend at node 20 with a trunnion attached, do I specify the SIF(bend) value calculated from the scratch pad as the inplane/outplane SIF at node 20. In turn if the trunnion is connected to node 19 on the bend, do I specify the SIF (trunnion,max)value at node 19 in the trunnion element definition.
This is how I interpret the note at the bottom of the scratch pad. I ask this question as the SIF (bend) value calculated of 8.93 seems very large, nearly 4 times the SIF without a trunnion and my analysis of an existing piping system is showing an overstress at this point.
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Thanks
Adam