Estimate the stress concentration factors for the initial design of a shaft, given the following information:
Diameter ratio D/d = 1.5
Radius ratio r/d = 0.02
Flexure factor Kt = 2.7
Torsion factor Kts = 3.0
The worst-case scenario for the shoulder of a bearing is when D/d = 1.5 and r/d = 0.02.
The worst-case scenario for a keyway is when r/d = 0.02.
The worst-case scenario for a retaining ring is when the radius at the bottom of the groove is around 1/10 of its thickness.
a) Only statement I is correct.
b) Only statement II is correct.
c) Only statement III is correct.
d) Statements I and II are correct.
e) Statements II and III are correct.