AP EAMCET202017 Sep 2020Evening ShiftPhysicsMechanical Properties of SolidsActual
The diagram shows stress versus strain curve for the materials (A ) and (B ). From the curves, we can infer that
Options
- A(A ) is brittle but (B ) is ductile
- B(A ) is ductile but (B ) is brittle
- CBoth (A ) and (B ) are ductile
- DBoth (A ) and (B ) are brittle
Correct answer
B. (A ) is ductile but (B ) is brittle
Step-by-step solution
According to stress-strain curve, we see that for same value of applied stress, strain produced is more in material (B ) than in material (A ) in linear region. Therefore, (A ) is ductile but (B ) is brittle. In ductile materials, yield point exists whereas in brittle material failure occurs without yielding. (A ) has yield point hence it is ductile. (B ) doesn't have yield point hence (B ) is brittle.