Mechanical Properties of Material

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Here are the main Material properties. Any material have some properties and according to that we use material in various application. The classification of properties are
  • mechanical properties
  • magnetic properties
  • chemical properties
  • thermal properties
  • physical properties
  • electrical properties

Mechanical properties widely depends on the bond of molecule and structural arrangement. They widely respond to load applied. The important mechanical properties are

  • Elasticity
  • Plasticity
  • Toughness
  • Ductility
  • Malleability
  • Hardness
  • Brittleness
  • Creep
  • Strength

ELASTICITY

  • Under elasticity the material deforms under load and regains the original shape when load is removed.
  • Load is externally applied ,this give rise to stress and strain.
  • Hence elastic material fallow hook’s law i.e. stress is directly proportional to strain.

PLASTICITY

  • Under this situation material deforms permanently on application of load.
  • This deformation cannot be recovered.
  • After attaining particular value material starts. yielding without any further increase in stress.

TOUGHNESS

  • It is the property of material by virtue of which it absorbs energy during plastic deformation.
  • Energy stored per unit volume is called modulus of toughness.

DUCTILITY

  • Ability of material to be drawn into wire is called ductility.
  • It is committed by pulling force.
  • It is measured in terms of

1)percentage of area reduced


2)percentage in elongation occurred.

MALLEABILITY

  • Ability of material to be drawn into thin sheet is called malleability.
  • Deformation is permanent in all directions
  • for malleability, ductility is important.

HARDNESS

  • Resistance to indentation ( even scratch)
  • It helps to protect those material who are under friction or rubbing.
  • Test for measuring hardness are:-

             1)Brinell’s test
             2)Rockwell test
             3)Vicker’s test

CREEP

  • Progressive or successive deformation of a material under load.
  • It is time functional.
  • Creep is more vulnerable at high temperature.
  • Measurement of creep is done in terms of plastic deformation.
  • Ionic and covalent structures are also affected by creep.






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1 COMMENT

  1. Hi dinesh
    Thank you so much for providing such valuble information.I would like to join with you. could you provide email-id

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