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.
Zero at centre and maximum at extreme points. Produced when a body is subjected to torsional moments.
Types Of Strain
- Longitudinal strain: change in length to original length l.
- Volumetric strain(dilatant): change in volume to the original volume.
- Lateral strain: change in diameter or lateral dimension to the original original diameter.
- Superficial strain: change in area to the original area.