At a machined shaft shoulder the small diameter d is 1.100 in, the large diameter D is 1.65 in, and the fillet radius is 0.11 in. The bending moment is 1260 lbf . in and the steady torsion moment is 1100 Ibf . in. The heat-treated steel shaft has an ultimate strength of Sut = 105 kpsi and a yield strength of S, = 82 kpsi. The reliability goal for the %3D endurance limit is 0.99. a) Determine the fatigue factor of safety of the design using each of the fatigue failure criteria described in this section b) Determine the yielding factor of safety Solution:
At a machined shaft shoulder the small diameter d is 1.100 in, the large diameter D is 1.65 in, and the fillet radius is 0.11 in. The bending moment is 1260 lbf . in and the steady torsion moment is 1100 Ibf . in. The heat-treated steel shaft has an ultimate strength of Sut = 105 kpsi and a yield strength of S, = 82 kpsi. The reliability goal for the %3D endurance limit is 0.99. a) Determine the fatigue factor of safety of the design using each of the fatigue failure criteria described in this section b) Determine the yielding factor of safety Solution:
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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![At a machined shaft shoulder the small diameter d is 1.100 in, the large diameter D is 1.65 in, and the fillet radius
is 0.11 in. The bending moment is 1260 Ib; . in and the steady torsion moment is 1100 lb; . in. The heat-treated
steel shaft has an ultimate strength of Sut = 105 kpsi and a yield strength of S, = 82 kpsi. The reliability goal for the
endurance limit is 0.99.
a) Determine the fatigue factor of safety of the design using
each of the fatigue failure criteria described in this section
b) Determine the yielding factor of safety
Solution:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcd9b9690-5a29-453a-a375-14c76c48877d%2F320ae53e-8cdd-49c6-b918-133a65354544%2Fuoud6im_processed.png&w=3840&q=75)
Transcribed Image Text:At a machined shaft shoulder the small diameter d is 1.100 in, the large diameter D is 1.65 in, and the fillet radius
is 0.11 in. The bending moment is 1260 Ib; . in and the steady torsion moment is 1100 lb; . in. The heat-treated
steel shaft has an ultimate strength of Sut = 105 kpsi and a yield strength of S, = 82 kpsi. The reliability goal for the
endurance limit is 0.99.
a) Determine the fatigue factor of safety of the design using
each of the fatigue failure criteria described in this section
b) Determine the yielding factor of safety
Solution:
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