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Poisson Ratio Formula

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Poisson's Ratio is defined as the ratio of the lateral and axial strain. For many metals and alloys, values of Poisson’s ratio range between 0.1 and 0.5. Check FAQs

𝛎 = \frac{Sd}{ε l}

𝛎 - Poisson's Ratio?Sd - Lateral Strain?ε_l - Longitudinal Strain?

Poisson Ratio Example

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Here is how the Poisson Ratio equation looks like with Values.

Here is how the Poisson Ratio equation looks like with Units.

Here is how the Poisson Ratio equation looks like.

0.015 = \frac{0.6}{40}

0.015 = \frac{0.6}{40}

0.015 = \frac{0.6}{40}

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Poisson Ratio Solution

Follow our step by step solution on how to calculate Poisson Ratio?

FIRST Step Consider the formula

𝛎 = \frac{Sd}{ε l}

Next Step Substitute values of Variables

∴

𝛎 = \frac{0.6}{40}

Next Step Prepare to Evaluate

∴

𝛎 = \frac{0.6}{40}

LAST Step Evaluate

∴

𝛎 = 0.015

Poisson Ratio Formula Elements

Variables

Poisson's Ratio

Poisson's Ratio is defined as the ratio of the lateral and axial strain. For many metals and alloys, values of Poisson’s ratio range between 0.1 and 0.5.

Symbol: 𝛎

Measurement: NAUnit: Unitless

Note: Value should be between -1 to 0.5.

Formulas to find Poisson's Ratio

Lateral Strain

Lateral Strain is ratio of change in diameter to original diameter.

Symbol: Sd

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Lateral Strain

Longitudinal Strain

The Longitudinal Strain is ratio of change in length to original length.

Symbol: ε_l

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Longitudinal Strain

Other formulas in Parameters category

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ρ' = \frac{V}{M}

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ΔL = α t \cdot L bar \cdot Δθ

Go Atomic Packing Factor

APF = \frac{V a}{V u}

Go Atomic Packing Factor Percentage

APF % = APF \cdot 100

How to Evaluate Poisson Ratio?

Poisson Ratio evaluator uses Poisson's Ratio = Lateral Strain/Longitudinal Strain to evaluate the Poisson's Ratio, poisson ratio is an effect that describes the deformation of an object or material under a specific load. Poisson's Ratio is denoted by 𝛎 symbol.

How to evaluate Poisson Ratio using this online evaluator? To use this online evaluator for Poisson Ratio, enter Lateral Strain (Sd) & Longitudinal Strain (ε_l) and hit the calculate button.

FAQs on Poisson Ratio

What is the formula to find Poisson Ratio?

The formula of Poisson Ratio is expressed as Poisson's Ratio = Lateral Strain/Longitudinal Strain. Here is an example- 0.015 = 0.6/40.

How to calculate Poisson Ratio?

With Lateral Strain (Sd) & Longitudinal Strain (ε_l) we can find Poisson Ratio using the formula - Poisson's Ratio = Lateral Strain/Longitudinal Strain.

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Poisson Ratio Formula

Poisson Ratio Example

Poisson Ratio Solution

Poisson Ratio Formula Elements

Other formulas in Parameters category

How to Evaluate Poisson Ratio?

FAQs on Poisson Ratio

Variable Name