A hub is press fitted on a shaft. An element in the hub is subjected to a radial compressive stress of 50 N/mm2 and hoop stress of 75 N/mm2. If the hub is made of 30C8 steel with yield strength, σy = 350 N/mm2, what is the factor of safety using maximum shear stress theory?

A hub is press fitted on a shaft. An element in the hub is subjected t

1.	A hub is press fitted on a shaft. An element in the hub is subjected to a radial compressive stress of 50 N/mm2 and hoop stress of 75 N/mm2. If the hub is made of 30C8 steel with yield strength, σy = 350 N/mm2, what is the factor of safety using maximum shear stress theory?
A.	2.8
B.	3.6
C.	4.2
D.	5.6
Answer» B. 3.6

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A hub is press fitted on a shaft. An element in the hub is subjected to a radial compressive stress of 50 N/mm2 and hoop stress of 75 N/mm2. If the hub is made of 30C8 steel with yield strength, σy = 350 N/mm2, what is the factor of safety using maximum shear stress theory?

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