Question: ( 2 5 points ) The rotating shaft shown in the figure is machined from AISI 1 0 2 0 CD steel. It is subjected

(25

points

)

The rotating shaft shown in the figure is machined from AISI

1020

CD steel. It is subjected to a force of

F = 6 k N .

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. Note: Dimensions are in millimeters.

( 2 5 points ) The rotating shaft shown in the

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