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Critical reevaluation of the prediction of effective Poisson's ratio for porous materials

✍ Scribed by K. K. Phani; Dipayan Sanyal

Publisher
Springer
Year
2005
Tongue
English
Weight
412 KB
Volume
40
Category
Article
ISSN
0022-2461

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An equation is presented for the prediction of the Poisson's ratio of porous materials. The equation is strictly derived for spherical porosity and isotropic materials and it is valid for the whole porosity range. For low porosity, the equation coincides with a published equation, which has been ver

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Poisson's ratio, n, is a fundamental parameter characterizing the mechanical behavior of a material. Because the ratio of the bulk to the shear modulus, B/G, becomes infinite when n ΒΌ 1=2, it is often assumed that the bulk modulus becomes very large as a material approaches ''incompressibility.'' Th