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    Coupling of solid deformation and pore pressure for undrained deformation—a discrete element method approach (English)

    In: International journal for numerical and analytical methods in geomechanics ; 41 , 18 ; 1943-1961 ; 2017
    • ISSN:
      0363-9061
    • Article (Journal)  /  Print

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    This paper presents a numerical scheme for fluid‐particle coupling that uses the discrete element method by taking into consideration solid deformation and pore pressure generation. A new water particle element is introduced to calculate pore water pressure due to porosity changes. The water particle element has the same size and shape as the solid element and experiences the same amount of deformation. On the basis of the effective stress principle at the element contact, the total force is equal to the sum of the force transmitted through the solid element contact and the water particle force due to pore water pressure. Analytical solutions of traditional soil mechanics problems, such as isotropic compression and consolidated triaxial undrained test, are used to quantitatively validate the proposed model. The numerical results show good agreement between the model and the analytical solutions. The model therefore provides an effective method to calculate pore pressure in a porous medium in discrete modeling.

    Table of contents – Volume 41, Issue 18

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    The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the TIB portal. The display of the Tables of Contents may therefore be incomplete.

    1779
    Issue Information
    | 2017
    1781
    Modelling large plastic deformations of cohesive soils using sequential limit analysis
    Kong, D. / Martin, C. M. / Byrne, B. W. et al. | 2017
    1807
    Efficient solution algorithms for multiaxial probabilistic elasto‐plastic constitutive simulations of soils
    Sadrinezhad, Arezoo / Sett, Kallol / Hariharan, S. I. et al. | 2017
    1828
    Validation of a three‐dimensional constitutive model for nonlinear site response and soil‐structure interaction analyses using centrifuge test data
    Zhang, Wenyang / Esmaeilzadeh Seylabi, Elnaz / Taciroglu, Ertugrul et al. | 2017
    1848
    A numerical study of mechanical behavior of a cement paste under mechanical loading and chemical leaching
    Jia, Y. / Bian, H.B. / Xie, S.Y. / Burlion, N. / Shao, J.F. et al. | 2017
    1870
    A two‐invariant pseudoelastic model for reservoir compaction
    Spiezia, N. / Ferronato, M. / Janna, C. / Teatini, P. et al. | 2017
    1894
    The effective stress concept and the evaluation of changes in pore air pressure under jacketed isotropic compression tests for dry sand based on the 2‐phase porous theory
    Kimoto, Sayuri / Oka, Fusao / Morimoto, Yasuhiro et al. | 2017
    1908
    Stress and strain fields for overdamped slug tests in aquifer materials, and resulting conservation equation
    Chapuis, Robert P. et al. | 2017
    1922
    Finite volume–based modeling of flow‐induced shear failure along fracture manifolds
    Deb, Rajdeep / Jenny, Patrick et al. | 2017
    1943
    Coupling of solid deformation and pore pressure for undrained deformation—a discrete element method approach
    Cui, Yifei / Chan, Dave / Nouri, Alireza et al. | 2017
    1962
    System reliability analysis of slopes using multilayer perceptron and radial basis function networks
    Kang, Fei / Li, Junjie / Xu, Qing et al. | 2017
    1979
    A relationship between tensile strength and loading stress governing the onset of mode I crack propagation obtained via numerical investigations using a bonded particle model
    Han, Zhenyu / Weatherley, Dion / Puscasu, Ruslan et al. | 2017
    1992
    Numerical analysis of the effect of natural microcracks on the supercritical CO2 fracturing crack network of shale rock based on bonded particle models
    Peng, Peihuo / Ju, Yang / Wang, Yongliang / Wang, Shaoqin / Gao, Feng et al. | 2017

    How to get this title?

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