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Journal of Porous Media
インパクトファクター: 1.49 5年インパクトファクター: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN 印刷: 1091-028X
ISSN オンライン: 1934-0508

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Journal of Porous Media

DOI: 10.1615/JPorMedia.v8.i5.20
pages 431-442

Application of a Dewatering Model for Fibroporous Media under Constrained Uniaxial Compression

Mei Duan
School of Engineering, James Cook University, Townsville, Queensland 4811, Australia
Jeffrey G. Lounghran
School of Engineering, James Cook University

要約

The governing equations of fluid flow through a deforming porous medium are considered for saturated and unsaturated flow. A uniaxial compression test cell is described. A strain-hardening formulation is presented based on nonlinear poroelasticity and "crushable-foam" plasticity models, which have been verified and applied in dewatering analysis of fibroporous media. Two- and three-dimensional models, including solid and liquid phases, are analyzed based on the isotropic poroelasticity, crushable-foam plasticity behavior, and contact theory. Definition and determination of material parameters are based on compression tests. A finite element analysis is implemented for a uniaxial compression test and is verified based on experiment data. A contact model is examined. Important mechanical quantities for solid and liquid phases, such as pore pressure, velocities, plasticity strain, deformation, and fluid behavior, are presented. A comparison of numerical solutions with experimental results shows good agreement.