Geometric stress concentration for a shaft with shoulder fillet in bending
Geometric stress concentration factor Kt = A(r/d)^b for a stepped shaft with a shoulder fillet loaded in bending, from chart-fit coefficients A, b keyed on the D/d ratio.
Geometric stress concentration, Kₜ1.6
Coefficient, A0.97098
Coefficient, b-0.21796
Method & references
- Kt = A(r/d)^b for a shaft with a shoulder fillet in bending.
The computation is a literal port of the original client-side JavaScript from /calculators/e1_1b.htm. Results are verified equal to the original by an automated golden-master test. No formula has been re-derived or “improved”.