V-notch in a circular shaft
<img src="https://eng-calculations.com/SVG/Roark(and39)s_formulas_for_Stress_and_Strain/Stress_concentration_factors_for_elastic_stress_(TABLE_17(and46)1)/V-notch in a circular shaft.svg" alt="V-notch_in_a_circular_shaft" title="V-notch_in_a_circular_shaft">
https://eng-calculations.com/SVG/Roark(and39)s_formulas_for_Stress_and_Strain/Stress_concentration_factors_for_elastic_stress_(TABLE_17(and46)1)/V-notch in a circular shaft.svg