Question

In: Mechanical Engineering

Report about Mechanical Properties in engineering mareials With refrences: citation

Report about Mechanical Properties in engineering mareials

With refrences: citation

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Expert Solution

Following are the mechanical properties in engineering materials :-

  1. Ductility - it is the property by virtue of which a material can be drawn into wires. e.g - mild steel is drawn into wires.
  2. plasticity - it is the property by virtue of which a material can be deformed into permanent shape. e.g- Coining.
  3. Malleability - it is the property by virtue of which a material can be transformed into sheet. e.g - G.I sheet.
  4. Stiffness - it is the ability of a material to resist permanent deformation against external load. it is the measurement of elasticity of the material.
  5. Toughness - the ability of a material to resist impact load. it is the energy stored per unit volume of a material before failure. e.g - impact strength of a material. Toughness of a material decreases with increase in temperature.
  6. Hardness - The ability of a material to resist indentation on material. there are several tests which measure hardness of a material - Brinell hardness test, Rockwell hardness, Vicker's hardness test.
  7. Creep - If a material is subjected to constant stress at high temperature consistently, this failure is called Creep. The ability of a material to avoid this failure is called Creep strength. e.g - Steam turbine blades, Internal Combustion engine parts are subjected to Creep failure.
  8. Elasticity - it is the property by virtue of which a material brings back to it's initial state after the removal of external load. Steel is more elastic than rubber. Modulus of elasticity (E) is the measurement of it's elasticity. Higher the "E" value , more the elastic material.

Reference of above information - Mechanics of Materials by Dr. B.C. Punmia & Strength of Materials by S.S. Bhavikatti.


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