Write and test a computer subroutine or procedure that implements Eq. (6–78) and Table 6–15, returning \sqrt{a}, C_{K f}, \text { and } \bar{K}_{f} .
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Eq. (6-78) : \bar{K}_{f}=\frac{K_{t}}{1+\frac{2\left(K_{t}-1\right)}{K_{t}} \frac{\sqrt{a}}{\sqrt{r}}}
| Table 6–15 Heywood’s Parameter √a and coefficients of variation C_{K f} for steels |
Notch Type | \sqrt{ a }(\sqrt{\text { in }}) ,S_{\text {ut }} \text{in kpsi} | \sqrt{ a }(\sqrt{ m m }) , S_{\text {ut }} \text{in MPa} | Coefficient of Variation C_{K f} |
| Transverse hole | 5 / S_{u t} | 174 / S_{u t} | 0.1 | |
| Shoulder | 4 / S_{u t} | 139 / S_{u t} | 0.11 | |
| Groove | 3 / S_{u t} | 104 / S_{u t} | 0.15 |