Question

Q The ratio of change produced in the dimensions of a body by
a system of forces or couples
in equilibrium, to its original
dimensions is called​

Answer 1

Answer:

strain

Explanation:

strain = change in dimensions / original dimension

unitless and dimensionless quantity

Answer 2

Answer:

The ratio of change produced in the dimensions of a body by a system of forces or couples in equilibrium, to its original dimensions is called​ Strain.

Explanation:

• Strain: The change produced in the dimensions of a body under a system forces or couples in equilibrium is called strain. This strain can be linear, shear or volume according to the change takes place in length, shape and volume of the body.
• Strain = [Change in dimensions / original dimensions]                                      The fact that strain means the relative change in shape or size implies that it is dimensionless and has no units.
• Types: There are three types of strain.                                                  (i) Longitudinal strain (ii) Shearing strain and (iii) Volume strain.

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