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2 cards from this section. Quick, good the night before a test.
Define Poisson's Ratio.
Think about how materials behave when stretched or compressed.
What is lateral strain?
Consider how a cylinder behaves when pulled at both ends.
What is Poisson's ratio?
Think about materials stretching in different directions.
Is Poisson's ratio dimensionless?
Consider the nature of the measurements involved.
A steel wire has an initial diameter of 5 mm and is stretched resulting in a lateral strain of 0.01. What is the longitudinal strain if Poisson's ratio for this steel is 0.3?
Rearranging the ratio will help solve for the longitudinal strain.
If a cylindrical rubber rod can sustain a longitudinal strain of 10% before reaching its elastic limit while having a Poisson's ratio of 0.45, what is the expected lateral strain when stretched?
Substitute known values into the formula.
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