Question

Area under the engineering stress-strain curve up to the yield point is known as:

Modulus of Resilience


Modulus of Toughness


Modulus of Elasticity


None of these

Answer 1

Modulus of Resilience is the correct answer.

1. In the stress strain curve, elastic limit and yield point are very close. Therefore, modulus of resilience is the area upto elastic limit and yield point.
2. Modulus of resilience is defined as the maximum amount of energy absorbed per unit volume till the ability to recover original shape or without creating a permanent distortion.