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What does the area under the stress-strain curve represent?(a) Toughness(b) Total deformation(c) Modulus of elasticity(d) Average force appliedThis question was addressed to me in a job interview.My question comes from Solids Mechanical Properties in portion Mechanical Properties of Solids of Physics – Class 11

Answer»

Correct OPTION is (a) Toughness

To EXPLAIN: Area under the stress-STRAIN curves represents toughness. Total deformation is given by the NET strain multiplied by original length. Modulus of ELASTICITY is the ratio of stress to strain under elastic limit.



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