Question

The work done in producing strain on a material per unit volume is called

• A. Elasticity
• B. Plasticity
• C. Resilience
• D. Creep

Hint:

Modulus of resilience = \(\frac{\sigma^2}{2E}\)

Answer 1

The Correct Option is C

The work done in producing strain on a material per unit volume is referred to as resilience. Resilience is a property of a material that represents its ability to absorb energy when it is deformed elastically and to release that energy upon unloading. Resilience is defined in terms of the area under the stress-strain curve in the elastic deformation region.

Concept	Definition
Elasticity	The ability of a material to return to its original shape after the stress is removed.
Plasticity	The ability of a material to undergo permanent deformation under load.
Resilience	The capacity of a material to absorb and release energy within the elastic limit.
Creep	The tendency of a material to deform permanently under the influence of mechanical stresses over time.