# Tension of a bar of circular cross section with a transverse hole

## Values for calculation

## Calculation

### Stress concentration factor with the nominal stress based on gross area

### Maximum normal stress

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$$K_{tg}=12.806-42.602\cdot\left(\cfrac{d}{D}\right)+58.333\cdot\left(\cfrac{d}{D}\right)^2$$

$$σ_{max}=\cfrac{K_{tg}\cdot P}{\left(π/4\right)\cdot D^2}$$