The stress-strain graphs for materials A and B are shown in Figure The graphs are drawn to the same scale. (a) Which of the materials has the greater Young’s modulus?(b) Which of the material is mo...
(a)
Young’s modulus is given by the equation,Y= stress/ strainAt a particular strain, Young’s modulus is directly proportional to the stress.
The slope of stress strain curve for material A has greater than the material B which gives higher value of Young's modulus.
(b)Material B is more brittle since the fracture point (end of solid curve) is at lower corresponding value of stress.
(c) Material A is more ductile since it has a greater plastic region; from elastic limit to breaking point.
(d)The...