Strain = Change in dimension/Original Dimension = [M0 L0 T0]
What is strain?
An object or medium under stress becomes deformed. The quantity that describes this deformation is called strain.
- Strain is defined as a force acting per unit area of a body
- Strain is the ratio of change in dimensions of a body under a force and original dimensions.
- Strain is a dimensionless quantity because it is a ratio of two similar quantities: lengths, area, or volume.