Question: Repeat Prob. 65 with the specimen having an ultimate strength of 1100 MPa. Repeat Prob. 65, A steel rotating-beam test specimen has an ultimate strength

Repeat Prob. 6–5 with the specimen having an ultimate strength of 1100 MPa.
Repeat Prob. 6–5, A steel rotating-beam test specimen has an ultimate strength of 230 kpsi. Estimate the fatigue strength corresponding to a life of 150 kcycles of stress reversal.

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