Problem:

The following appears in the model consistency check report:

* * * W A R N I N G - MODEL * * *
W2164-145:B31 App J: SIF values for the tee(s) below are not valid, as the ratio of run mean diameter to
run thickness is greater than or equal to 50.

How to avoid it and fix it?

Solution:

This message appears when the ratio of D/T >= 50. 

The only options are:

Since the model geometry violates the clause requirements per table 1-1, 2.6 tee notes 1, 7, or 10, the program will not calculate the stiffness's nor SIF's per B31.J. Instead the program will take the conservative approached, refer to minimum default values. 

Example:

Tee fitting, Ratio of D/T = 64.2, as a result the ASME B31.J equations per table 1-1 Image 2.6 were ignored and instead used conservative values Run SIF in plane, iir =1.5. 

See Also

Warnings Messages displayed in AutoPIPE

Bentley AutoPIPE