The figure below shows the stress-strain curve for a solid. The vertical axis is

Question

The figure below shows the stress-strain curve for a solid. The vertical axis is marked in increments of 20 MN/m2 and the horizontal axis is marked in increments of 0.001.

(a) What is the Young's modulus for this material? 3.0e10 N/m2 (b) What is the approximate yield strength for this material? N/m2 Young's modulus is the ratio of stress to strain. How does that ratio appear on the given graph? The yield strength is where the ratio first becomes nonconstant. Need Help with Part B! Will greatly appreiciate any help! The figure below shows the stress-strain curve for a solid. The vertical axis is marked in increments of 20 MN/m2 and the horizontal axis is marked in increments of 0.001.

Explanation / Answer

Young's modulus=stress/strain=120/0.004=30000 MN/m^2
yield strength=120MN/m^2

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