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The figure presented below shows a grooved rotating shaft with a ground surface finish that is subjected to a constant b
Posted: Thu Jul 14, 2022 2:45 pm
by answerhappygod
- The Figure Presented Below Shows A Grooved Rotating Shaft With A Ground Surface Finish That Is Subjected To A Constant B 1 (171.88 KiB) Viewed 31 times
The figure presented below shows a grooved rotating shaft with a ground surface finish that is subjected to a constant bending moment of M=150[Nm] and an axial load of P=10[kN]. In addition, there is a torsional load that fluctuates between −50<T<130[Nm]. It can be assumed that the torsional loading is in phase and acting at the same frequency as the rotation of the shaft. The radius of the fillet is r=3[ mm] and a reliability of 90% is desired. The shaft is made from steel having Sut=935[MPa] and Sy=880[MPa]. Find the safety factor for both the infinite fatigue life (n∞) and for 3×105 cycles (n3×105).