Question

expression for poisons ratio ​

Answer 1

The absolute value of the ratio between the longitudinal strain and transverse strain is called Poisson's ratio, which is expressed as follows: Poisson's ratio differs depending on the material

Answer 2

Poisson's ratio is the ratio of lateral strain to longitudinal strain in a material subjected to loading. Poisson's ratio varies between 0.1 for high strength concrete and 0.2 for weak mixes. It is normally taken as 0.15 for strength design and 0.2 for serviceability criteria