Engineering, 28.06.2020 03:01, marisajuarez14

A bar of steel has the minimum properties Se 5 40 kpsi, Sy 5 60 kpsi, and Sut 5 80 kpsi. The bar is subjected to a steady torsional stress of 15 kpsi and an alternating bending stress of 25 kpsi. Find the factor of safety guarding against a static failure, and either the factor of safety guarding against a fatigue failure or the expected life of the part. For the fatigue analysis use: (a) Modified Goodman criterion. (b) Gerber criterion. (c) ASME-elliptic criterion.

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A bar of steel has the minimum properties Se 5 40 kpsi, Sy 5 60 kpsi, and Sut 5 80 kpsi. The bar is...