Dear Dave

Earlier in B 31.3 2006 code the effect of Weld joint strength factor was very clear , as i understood-
1.To calculate wall thickness
2.To reduce sustain allowable(Code used Sh x W to take the effect)
and
Caesar 5.2(This has used ASME B 31.3 2006 edition and it is taking the effect of this facor by reducing Sustained allowable)


Now in B 31.3 2010 code the effect of Weld joint strength factor is not very clear, as i understood-
1.To calculate wall thickness (Same as earlier in B 31.3 2006)
2.Code said''THE DESIGNER IS RESPONSIBLE FOR THE APPLICATION OF WELD JOINT STRENGTH REDUCTION FACTOR''

Now Caesar 6.1-This provides just an ON/OFF option in configuration file but how it is taking the effect of this factor into calculations?
Will the allowables be reduced?
or something else.

So My question is how weld joint strength factor is taking part in stress calculation as per ASME B 31.3 2010 and CAesar 6.1 ?

Thanks