A Note on the Effect of Negative Poisson’s Ratio on the Deformation of a Poroelastic Half-Space by Surface Loads

Abstract

The aim of this note is to study the effect of negative Poisson’s ratio on the quasi-static deformation of a poroelastic half-space with anisotropic permeability and compressible fluid and solid constituents by surface loads. Two particular cases considered are: two-dimensional normal strip loading and axisymmetric normal disc loading. It is found that a negative Poisson’s ratio makes the Mandel-Cryer effect more prominent. It also results in an increase in the magnitude of the surface settlement.

The aim of this note is to study the effect of negative Poisson’s ratio on the quasi-static deformation of a poroelastic half-space with anisotropic permeability and compressible fluid and solid constituents by surface loads. Two particular cases considered are: two-dimensional normal strip loading and axisymmetric normal disc loading. It is found that a negative Poisson’s ratio makes the Mandel-Cryer effect more prominent. It also results in an increase in the magnitude of the surface settlement.

Keywords

Anisotropic Permeability, Auxetic Material, Negative Poisson’s Ratio, Poroelastic Half-Space, Quasi-Static Deformation, Surface Loading

Anisotropic Permeability, Auxetic Material, Negative Poisson’s Ratio, Poroelastic Half-Space, Quasi-Static Deformation, Surface Loading

Cite this paper

nullS. Rani, R. Kumar and S. Singh, "A Note on the Effect of Negative Poisson’s Ratio on the Deformation of a Poroelastic Half-Space by Surface Loads,"*Engineering*, Vol. 2 No. 6, 2010, pp. 432-437. doi: 10.4236/eng.2010.26056.

nullS. Rani, R. Kumar and S. Singh, "A Note on the Effect of Negative Poisson’s Ratio on the Deformation of a Poroelastic Half-Space by Surface Loads,"

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