Poisson's Ratio 3
Poisson's Ratio 3 : Deformations are changes in form produced by external forces or loads that act on non-rigid bodies. Deformations are longitudinal, e, a lengthening (+) or shortening (-) of the body. Unit deformation (dimensionless number) is the deformation in unit distance. Unit longitudinal deformation is s=e/l. Accompanying a longitudinal deformation e is a lateral deformation e'. The ratio of s' / s is Poisson's ratio, which differs for different materials
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