Stress And Strain Explained With Types

Arises due to application of a tensile or compressive force on an oblique surface or torsion.

a) Tensile or Compressive force:

Produced when a force is applied at an oblique surface. And, it’s magnitude equals the component of the applied force along the surface.

b) Torsion:

Zero at centre and maximum at extreme points. Produced when a body is subjected to torsional moments.

Types Of Strain

  1. Longitudinal strain: change in length to original length l.
  2. Volumetric strain(dilatant): change in volume to the original volume.
  3. Lateral strain: change in diameter or lateral dimension to the original original diameter.
  4. Superficial strain: change in area to the original area.

 

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