(Solved): shaft D = 1.5 The figure shows a shaft mounted in bearings at \( A \) and \( D \) and having pull ...

shaft D = 1.5

The figure shows a shaft mounted in bearings at \( A \) and \( D \) and having pulleys at \( B \) and \( C \). The forces shown acting on the pulley surfaces represent the belt tensions. The shaft is to be made of AISI \( 1035 \mathrm{CD} \) steel. The shaft is rotating at speed of \( 1000 \mathrm{rpm} \). 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.