By modern standards, the shaft shown below is poor because it is so long. Suppose it is redesigned by halving th length dimensions. Using AISI $1035$ CD and a design factor of $2,$ find the shaft dlameter. Use MSST to determine the diameter at the critical section.

The value of $F_{B1}=460lb,F_{B2}=76\mathrm{.}7lb,F_{C1}=90\mathrm{.}6lb,$ and $F_{C2}=601\mathrm{.}8lb.$

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Determine the values of the reaction forces. $($Include a minus sign if necessary.$)$

The reaction force at A in y direction is lb$.$

The reaction force at $D$ in $y$ direction is

lb$.$

The reaction force at A in z direction is

lb$.$