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Question

Some structural members subjected to long time sustained loads deform progressively with time especially at elevated temperatures. What is such a phenomenon called?

A
Fatigue
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B
Creep
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C
Creep relaxation
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D
Fracture
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Solution

The correct option is B Creep
Creep results in progressive deformation when a constant load is applied over time especially at elevated temperatures. Deformation occurs as a result of long-term exposure to high levels of stress that are still below the yield strength of the material.

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