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Q3 (b)  The stress-strain graphs for materials A and B are shown in Fig. 9.12. The graphs are drawn to the same scale. Which of the two is the stronger material?
         

 

 

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(b) The amount of stress required for fracturing a material, corresponding to its fracture point, gives the strength of that material. The fracture point is the extreme point in a stress-strain curve. It can be observed that material A can withstand more strain than material B. Hence, material A is stronger than material B.

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