Design Against Fluctuating Load Practice Set

May 19, 2021

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1. The criterion of failure for machine parts subjected to fluctuating stresses is

2. Stress concentration occurs due to

3. The approximate relationship between endurance limit of rotating beam specimen (S’e) and ultimate tensile strength (Sut), in case of steel component, is

4. Stress concentration factor is defined as

5. A stress that varies in sinusoidal manner with respect to time from tensile to compressive (or vice versa) and which zero mean is called

6. Stress concentration occurs due to

7. Stress concentration occurs at the contact between

8. The notch sensitivity factor (q) is given by

    Where, Kt and Kf are theoretical and fatigue stress concentration factors

9. The reliability factor for using 50% reliability in design is

10. A stress that varies in sinusoidal manner with respect to time from a minimum value to maximum value and which has some mean as well as amplitude value is called


 

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A Demrot is the founder of VideRime Online Learning, a leading engineering website. He did his BE Civil and M.Tech Structure from RGPV University, Bhopal and has been working as an Assistant Professor in a reputed college.

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