All materials obey Hooke's law within elastic limit. When elastic limit is reached, the tensile strain__________________?
Correct answer: A. Increases very quickly
- A. Increases very quickly
- B. Decreases very quickly
- C. Increases in proportion to stress
- D. Decreases in proportion to stress
Explanation
At the elastic limit, the material begins to yield, so a small further increase in stress produces a comparatively large increase in strain. The proportional stress-strain relation applies only before this point.
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