Width Change
If a rod with diameter (or width, or thickness) d and length L is subject to tension so that its length will change by ΔL then its diameter d will change by:
The above formula is true only in the case of small deformations; if deformations are large then the following (more precise) formula can be used:
where
- is original diameter
- is rod diameter change
- is Poisson's ratio
- is original length, before stretch
- is the change of length.
The value is negative because it decrease with increase of length
Read more about this topic: Poisson's Ratio
Famous quotes containing the words width and/or change:
“Newly stumbling to and fro
All they find, outside the fold,
Is a wretched width of cold.”
—Philip Larkin (1922–1986)
“We shall have to begin all over again. [Taft hoped that] the Senators might change their minds, or that the people might change the Senate; instead of which they changed me.”
—William Howard Taft (1857–1930)