Elasticity

Asked by Shankarkumar5474 | 30th Jun, 2019, 08:04: PM

Expert Answer:

Elasticity, ability of a deformed material body to return to its original shape and size when the forces
causing the deformation are removed. A body with this ability is said to behave (or respond) elastically.
 
To a greater or lesser extent, most solid materials exhibit elastic behaviour, but there is a limit to the magnitude
of the force and the accompanying deformation within which elastic recovery is possible for any given material.
This limit, called the elastic limit, is the maximum stress or force per unit area within a solid material that can arise
before the onset of permanent deformation.
 
Stresses beyond the elastic limit cause a material to yield . For such materials the elastic limit marks the
end of elastic behaviour and the beginning of plastic behaviour. For most brittle materials, stresses beyond the
elastic limit result in fracture with almost no plastic deformation.

Answered by Thiyagarajan K | 30th Jun, 2019, 08:49: PM

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