Enter the fatigue strength reduction factor (Kg) per the ASME code Appendix 26. This factor accounts for geometrical stress concentration factors due to thickness variations; weld geometries, surface notches or environmental conditions.
The range of factor Kg is between 1 and 4, with its minimum value for smooth geometrical shapes and its maximum for 90 degree welded corners and fillet welds.
Fatigue strength reduction factors can be determined from theoretical, experimental, or photo elastic studies.