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Problem $06\mathrm{.}017-$ The rotating shaft is machined from AISI $1040$ CD steel

The shaft shown in the figure is machined from AISI $1040$ CD steel. The shaft rotates at $1600$ rpm and is supported in

rolling bearings at A and B$.$ The applied forces are F$\_(1)=1,500$lbf and F$\_(2)=2250$lbf$.$ Determine the minimum

fatigue factor of safety based on achieving infinite life. If infinite life is not predicted, estimate the number of cycles to

failure. Also check for yielding.

Problem $06\mathrm{.}017.$a $-$ Calculate the fatigue stress$-$concentration factor

What are the values of the theoretical stress$-$concentration factor, the notch sensitivity$,$ and the fatigue stress$-$concentration

factor? $($Round all the final answers to two decimal places.$)$

The value of the theoretical stress concentration$-$factor is

The value of the notch sensitivity is

The value of the fatigue stress concentration$-$factor is

please solve with numbers not matlab or any other random stuff