Stress concentration factor (K t ): dependence on part characteristics Determine what K t primarily depends on for an elastic member with a notch/hole/fillet. Choose the correct option.

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Stress concentration factor (K<sub>t</sub>): dependence on part characteristics Determine what K<sub>t</sub> primarily depends on for an elastic member with a notch/hole/fillet. Choose the correct option.

Difficulty: Easy

Material of the part
Geometry of the part
Material and geometry of the part
None of these

Correct Answer: Geometry of the part

Explanation:

Concept
The theoretical stress concentration factor K_t 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, K_t is independent of material; material enters through notch sensitivity in fatigue, not in K_t itself.

Final Answer
Geometry of the part

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