Properties of Materials
Elasticity: Elasticity is the property by which a material is deformed under the load and is enabled to return to its original dimension when the load is removed.
Plasticity: Plasticity is the converse of elasticity. A material in the plastic state is permanently deformed by the application of load and it does not tend to recover. The characteristic of the material by which it undergoes inelastic strains beyond those at the elastic limit is known as Plasticity.
Ductility: Ductility is the characteristic which permits a material to be drawn out longitudinally to a reduced section, under the action of a tensile force (larger deformation).
Brittleness: Brittleness implies the lack of ductility. A material is said to be brittle when it cannot be drawn out by tension to the smaller section.