Question: A steel rotating - beam test specimen has an ultimate strength of 2 3 0 k . Show the resulting S - N curve. Estimate

A steel rotating-beam test specimen has an ultimate strength of 230k. Show the resulting S-N curve. Estimate the fatigue strength corresponding to a life of 150 kcycles of stress reversal. (Shigley 6-5) Need help creating the S-N curve with the given information.
A steel rotating-beam test specimen has an ultimate strength of 230k.

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