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If the mean stress value for a sinusoidal stress function is zero, then this type of stress falls in which category?

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+1 vote
in Machine Design by (86.7k points)
If the mean stress value for a sinusoidal stress function is zero, then this type of stress falls in which category?

(a) Fluctuating Stresses

(b) Alternating Stresses

(c) Repeated Stresses

(d) Reversed Stresses

I have been asked this question in previous year papers.

This MCQ is from the Fluctuating Stresses & Fatigue Failure module in module Design Against Fluctuating Load of Machine Design

1 Answer

0 votes
ago by (48.2k points)
Suitable answer is (d) Reversed Stresses

Best explanation: If mean is to be zero, then there must be compressive as well as tensile stresses and hence belongs to reversed stresses category.

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