B31.3 Code Interpretation 1-34 dated February 23, 1981 File: 1470-1 states that for sustained and occasional loads an SIF of 0.75i, but not less than 1.0 may be used. This setup directive allows the user to enter their coefficient. The default is 1.0. To comply with this interpretation the user would enter 0.75. B31.3 Code Interpretation 6-03 dated December 14, 1987 permitted users to ignore the stress intensification for sustained and occasional loads. To comply with this interpretation, the user would enter 0.0.
This confuses me. Could any one explain me why it should be 1 or whatever? What is the correct practise to use.
Thanks,