Poisson's ratio: Difference between revisions
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imported>Paul Wormer (New page: {{subpages}} In material science, '''Poisson's ratio''' is the ratio of two dimensionless numbers: the transverse to longitudinal strain. When a metal bar under tension is elong...) |
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In [[material science]], '''Poisson's ratio''' is the ratio of two dimensionless numbers: the transverse to longitudinal [[strain]]. | In [[material science]], '''Poisson's ratio''' is the ratio of two dimensionless numbers: the transverse to longitudinal [[strain]]. | ||
When a metal bar under tension is elongated, its width is slightly diminished. This lateral shrinkage constitutes a transverse strain that can be expressed as the change in the width divided by the original width (hence strain is dimensionless). Similarly, the longitudinal strain is the change in length divided by the original length of the metal bar under lengthwise tension or compression. The ratio of the two strains is Poisson's ratio. This ratio is named for the French mathematician [[Siméon-Denis Poisson]]. | When a metal bar under tension is elongated, its width is slightly diminished. This lateral shrinkage constitutes a transverse strain that can be expressed as the change in the width divided by the original width (hence strain is dimensionless). Similarly, the longitudinal strain is the change in length divided by the original length of the metal bar under lengthwise tension or compression. The ratio of the two strains is Poisson's ratio. This ratio is named for the French mathematician [[Siméon-Denis Poisson]].[[Category:Suggestion Bot Tag]] | ||
Latest revision as of 11:00, 5 October 2024
In material science, Poisson's ratio is the ratio of two dimensionless numbers: the transverse to longitudinal strain.
When a metal bar under tension is elongated, its width is slightly diminished. This lateral shrinkage constitutes a transverse strain that can be expressed as the change in the width divided by the original width (hence strain is dimensionless). Similarly, the longitudinal strain is the change in length divided by the original length of the metal bar under lengthwise tension or compression. The ratio of the two strains is Poisson's ratio. This ratio is named for the French mathematician Siméon-Denis Poisson.