Poisson ratio


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Poisson ratio

[pwä′sōn‚rā·shō]
(mechanics)
The ratio of the transverse contracting strain to the elongation strain when a rod is stretched by forces which are applied at its ends and which are parallel to the rod's axis.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The proportionality coefficient ([k.sub.s]; Eqn 1) has been experimentally derived (Boiling 1987) and analytically related to the soil's Poisson ratio such that [k.sub.s] is primarily a function of the soil's Poisson ratio, v (Berli et al.
[[gamma].sub.2] is the Poisson ratio of proppant 2, dimensionless;
(2) In this project, when elasticity modulus, Poisson ratio, or wave impedance ratio of the foam concrete increases, the vibration reduction effect is lowered.
where [E.sub.L] is longitudinal Young modulus, [E.sub.T] is transverse Young modulus, v is in plane Poisson ratio, [G.sub.P] is in plane shear modulus and [G.sub.T] is transverse shear modulus.
Numerical properties of intra-aneurysmal pressure impact fluid velocity membrane displacement and the deformed radius with respect to the Poisson ratio membrane thickness and extensional rigidity are studied.
Material properties Values Skeleton [3, 7] Young's modulus 3.72 GPa Poisson ratio 0.3 Density 1850 kg/[m.sup.3] Elastic modulus 0.5 GPa Muscle [8] Poisson ratio 0.4 Density 1000 kg/[m.sup.3]
For all the problems, the width of the beam is taken as unity and the shear correction factor and Poisson ratio are taken to be 5/6 and 0.3, respectively.
That is why the value of the Poisson ratio is practically constant and its minimum occurs for 30[degrees] (or 210[degrees]).
Relative to the original Poisson ratio in the original EK model, the initial Poisson ratio was 0, primarily because the sample started to compress.