Poisson's Ratio – Longitudinal Strain and Lateral Strain

It is the ratio of transverse contraction strain to longitudinal extension strain, in the direction of stretching force. There can be a …

Poisson's Ratio – Longitudinal Strain and Lateral Strain/a>

let’s say a cylindrical body and you extend it you apply a tensile force what happens is that the diameter reduces of this body right so mainly because to keep the volume constant all that is fine but the ratio of how much the diameter changes and the ratio of the how much the length changes is a constant right and it’s called the poisons ratio so basically let’s say it the length increases by Delta L and the diameter reduces by Delta D poisons ishow equals minus Delta D by D divided by Delta L by L now why the minus again is pretty simple right because in this case when you’re pulling it right that means Delta L is positive and obviously at that point the diameter will only reduce so Delta D will be negative so therefore to make the whole ratio constant I’m sorry to make the whole ratio positive you add a negative sign therefore it becomes the poisons ratio is always positive this is true even when you compress it so when you push it inward right Delta L reduces so Delta L will be negative but your D your diameter will increase right so Delta D will you were still so again if you add just one negative sign the whole ratio becomes positive again you keep learning with such engaging videos download by Jews the learning app today

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