Stress concentration factor (Kt): dependence on part characteristics Determine what Kt primarily depends on for an elastic member with a notch/hole/fillet. Choose the correct option.
Mechanical Engineering
Machine Design
Difficulty: Easy
Choose an option
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AMaterial of the part
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BGeometry of the part
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CMaterial and geometry of the part
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DNone of these
Answer
Correct Answer: Geometry of the part
Explanation
ConceptThe theoretical stress concentration factor Kt is a geometric amplification factor (ratio of maximum local stress to nominal stress) dictated by shape features: holes, notches, grooves, and fillet radii. In linear elasticity, Kt is independent of material; material enters through notch sensitivity in fatigue, not in Kt itself.
Final AnswerGeometry of the part