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(Solved): 1) For a 1030 HR steel shaft with a bending moment of 400in-lbf, torque of 300in-lbf, stress concent ...



1) For a 1030 HR steel shaft with a bending moment of 400in-lbf, torque of 300in-lbf, stress concentration caused by a retaining ring groove with a relevant shaft diameter of 1.5in, what is the safety factor against fatigue using the Goodman Criteria?

2) For a 1030 HR steel shaft with a bending moment of 100in-lbf, torque of 200in-lbf, stress concentration caused by a wide radius with a relevant shaft diameter of 0.75in, what is the safety factor against fatigue using the Goodman Criteria?

Im using the Shigley's Mechanical Engineering Design 11th edition textbook.



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Calculate the bending stress and torsional stress using the given values of bending moment and torque, respectively:Bending stress, ??b=Mb×cI?=4×100(?
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