Problem 8049. Stress-Strain Properties - 2

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The resilience of a material is its ability to resist permanent (or plastic) deformation. The resilience coincides with the elastic region in the figure below and is calculated as the area under the stress-strain curve up to the yield point. Given that the elastic region is presumed to be entirely linear, this area is a triangle. Write a function to calculate the resilience of a material provided its elastic strain and yield stress (yield strength).

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Previous problem: 1 - elastic modulus. Next problem: 3 - qualitative measure of brittleness.

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