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Problem 5. Use the table and figure given below, estimate the following for a 1035 HR steel(a) the rotating-beam endurance limit at 10° cycles.(b) the endurance strength of a polished

rotating-beam specimen corresponding to 10 cycles to failure(c) the expected life a polished rotating-beam specimen under a completely reversed stress of 28 kpsi.

Fig: 1

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Fig: 3