(Solved): The rotating shaft shown in the figure is machined from AISI 1020 CD steel. It is subjected to a f ...

The rotating shaft shown in the figure is machined from AISI 1020 CD steel. It is subjected to a force of \( F=6 \mathrm{kN} \). Find the minimum factor of safety for fatigue based on infinite life. If the life is not infinite, estimate the number of cycles. Be sure to check for yielding.