Explanation Notes - Mechanical Engineering

Mechanical Engineering: Explanation Notes - Mechanical Engineering

The document Explanation Notes - Mechanical Engineering is a part of Mechanical Engineering category.
All you need of Mechanical Engineering at this link: Mechanical Engineering

Which one of the following features improves the fatigue strength of a metallic material?
  • a)
    Increasing the temperature
  • b)
    Scratching the surface
  • c)
    Overstressing
  • d)
    Under stressing
Correct answer is 'D'. Can you explain this answer?

Ref: https://edurev.in/question/463518/Which-one-of-the-following-features-improves-the-f

Look basically if u c...other criteria hampering the material state leading to failure.. but under stressing brings compressive residual stress that helps to avoid unusual crack formation.. n make a strong high depth layer by one of such process called shot pining.which make it away from crack n max bending zone.I have one PDF.. I can send u if u need.
The document Explanation Notes - Mechanical Engineering is a part of Mechanical Engineering category.
All you need of Mechanical Engineering at this link: Mechanical Engineering

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