electrical daily concept booster,HVDC transmission

Poisson’s ratio (μ)

for homogeneous & Isotropic material elongation/contraction produced by any axial force in the direction of force is accompanied by contraction relongation in all transverse direction.
μ=[(lateral strain)/(Longitudental strain)]
Limit
(o≤μ≤0.5)

O → Cork
-1.5 → Rheotropic material (human tissue)

Poisson’s ratio

Material

0.02-0.03

0.1-0.2

0.2-0.3

0.27-0.30

0.3

0.33

0.33-0.36

0.34

0.40

0.45-0.50

Glass

Concrete

Cast iron

Steel

Wrought iron

Aluminum

Copper

Brass & Bronze

Nylon

Rubber

→ if perfectly plastic material by applying load strain perpendicular to applied load direction is very less (approx. zero) so Poisson’s ratio has zero magnitude.
→ Ideal plastic
(μ=(-ϵy)/ϵx=0 )

Boost your preparation with the all-new Concept Booster Series by Adda247 Engineering Jobs, this series aims to target all the important engineering exams such as SSC JE 2022, GATE 2022, ESE 2022, and many more. Please reach out to us with your feedback in the comment section.