The ability of a material to absorb energy in the elastic region is called-

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Question

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RRB JE ME CBT 2 Previous Paper 2: Held on 31 Aug 2019

Answer 1

Explanation:

Resilience

Resilience is the total strain energy stored in a given volume of a material within elastic limit.
On removal of load this energy is released. In other words, it is the area under load-deflection curve within elastic limit.

Ductility

The property of material by virtue of which, it can be drawn in to wire with the application tensile force is known as ductility.
It is measured as the ratio of elongation of the material at the fracture during the tensile test to the original length, expressed as percentage.
It may also be expressed as the ratio of reduction in cross-sectional area in the fractured specimen to the original cross-section area.

Toughness

It is defined as the ability of the material to absorb energy before fracture takes place.
This property is essential for machine components which are required to withstand impact loads.
Tough materials have the ability to bend, twist or stretch before failure takes place.