Tuesday, October 31, 2017

Mechanical Properties of Materials

In general, all the materials used by the engineers, may be classified, on the basis of their physical properties, into the following four types:

1) Elastic materials : When a material regains its original position, on the removal of the external force, it is called an elastic material.

2) Plastic materials : When a material doesn't not regain its original position, on the removal of the external force, it is called a plastic materials.

3) Ductile materials : When a material can undergo a considerable deformation without rupture (e.g. when a material can be drawn into wires), it is called a ductile material.

4) Brittle material : When a material cannot undergo any deformation  ( like glass) and it fails by rupture, it is called a brittle material. 

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