Question: A solid shaft is subjected to an alternating torque varying from -200 N-m to +300 N-m. The shaft is ground and reliability is 90%. Calculate

A solid shaft is subjected to an alternating torque varying from -200 N-m to +300 N-m. The shaft is ground and reliability is 90%. Calculate shaft diameter for infinite life. Take factor of safety of 2.5. Sut=615 N/mm² and Syt 375 N/mm².

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