(a) Which of the materials has the greater Young’s modulus?

(b) Which of the two is the stronger material?

Solution:

(a) We can observe from the graphs that for a given strain, has a higher stress than .

As a result, has a higher Young’s modulus than .

(b) Young’s modulus is also a measure of a material’s strength. Because A has a higher Young’s modulus than B, the material is stronger.