Question 23 / 40:  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
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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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