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What does the k mean in Hooke’s law? - FutureLearnWhat Is Elastic Limit? Definition, Importance, How It Works, and ExamplesState Hooke’s law. Hence draw a typical stress-strain curve for a metallic wire and label the parts.Elastic Limit And Difference Between Elastic Limit And Proportionality Limit81 reviews
Limit of proportionality is the end of where Hooke's Law applies. At greater forces, the extension is no longer proportional to the force. From then on the Force extension graph becomes curved. The elastic limit is where plastic deformation starts-i.e the wire no longer returns to the original length when the force is removed. For metals, there is usually a small gap between the two points on the graph-i.e the metal no longer obeys Hooke's law but it will still returns to its original length when the force is removed.
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