• Card 22 / 36: The term stress concentration refers to which of the following?
    A) Stress per unit area
    B) Stress per unit volume
    C) Local stress elevation caused by local geometrical features or defects
    D) Stress focusing from careful location of external loads
    E) Crack propagation due to applied stress

    Answer:
    C) Local stress elevation caused by local geometrical features or defects

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Explanation:

Stress concentration refers to the local stress amplification produced in a material under load near corners, loads, cracks, bubbles, or other special features. The stress there is larger than that observed for a uniform specimen under identical load.

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Mechanics I ME102

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Attribution:  Stephanie Redfern, Ranjeet (Ron) Agarwala, and Dr. Steve Gibbs. Mechanics I. The Saylor Academy 2014, http://www.saylor.org/courses/me102/
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