Fatigue strength of a material increases by_____________________?
Correct answer: A. Under stressing the specimen
- A. Under stressing the specimen
- B. Rise in temperature
- C. Having notches in the specimen
- D. Having scratches on the surface
Explanation
Controlled understressing can increase fatigue strength through coaxing, which stabilizes the material against repeated loading. Notches and scratches act as stress concentrators, while higher temperature generally reduces fatigue resistance.
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