Library Subscription: Guest
Begell Digital Portal Begell Digital Library eBooks Journals References & Proceedings Research Collections
International Journal for Multiscale Computational Engineering
IF: 1.016 5-Year IF: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN Print: 1543-1649
ISSN Online: 1940-4352

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.2016016951
pages 367-387

MULTISCALE MODEL FOR DAMAGE-FLUID FLOW IN FRACTURED POROUS MEDIA

Richard Wan
Civil Engineering Department, Schulich School of Engineering, University of Calgary, AB T2N 1N4, Canada
Mahdad Eghbalian
Civil Engineering Department, Schulich School of Engineering, University of Calgary, AB T2N 1N4, Canada

ABSTRACT

The paper deals with a closed-form continuum description of coupled fluid flow-deformation behavior of porous media with distributed strong discontinuities. Based on the underlying physics of the solid and fluid phases at the microscale, the macroscopic hydro-mechanical (HM) behavior of a representative elementary volume is eventually retrieved in the fully saturated case using the mean-field theory and Mori-Tanaka Homogenization Scheme. The heterogeneity that governs the overall HM behavior is induced by evolving microcracks described by a crack density distribution tensor. Herein, only the shape and orientation of microcracks are accounted for in the upscaling process. Examples are presented to assess the robustness of the proposed mathematical formulation. Finally, the evolution of heterogeneity in poromechanical parameters as well as hydraulic properties of the system is investigated by coupling a microcrack growth formulation under general loading conditions with fluid flow. We will briefly discuss, through material point simulations, how the proposed model can capture localized deformations and corresponding fluid transmission behavior starting from an initially homogeneous state.


Articles with similar content:

Size of a Representative Volume Element in a Second-Order Computational Homogenization Framework
International Journal for Multiscale Computational Engineering, Vol.2, 2004, issue 4
Marc Geers, W. A. M. Brekelmans, Varvara G. Kouznetsova
DISCRETE ELEMENT MODEL FOR IN-PLANE LOADED VISCOELASTIC MASONRY
International Journal for Multiscale Computational Engineering, Vol.12, 2014, issue 2
Daniele Baraldi, Antonella Cecchi
MULTISCALE VISCOELASTIC−VISCOPLASTIC MODEL FOR THE PREDICTION OF PERMANENT DEFORMATION IN FLEXIBLE PAVEMENTS
International Journal for Multiscale Computational Engineering, Vol.10, 2012, issue 6
Roman Lackner, Elisabeth Aigner, Josef Eberhardsteiner
A Multiscale Approach to Numerical Modeling of Solidification
International Journal for Multiscale Computational Engineering, Vol.8, 2010, issue 3
Mariusz Ciesielski
VALIDATION OF A PROBABILISTIC MODEL FOR MESOSCALE ELASTICITY TENSOR OF RANDOM POLYCRYSTALS
International Journal for Uncertainty Quantification, Vol.3, 2013, issue 1
Arash Noshadravan, Roger Ghanem, Pedro Peralta, Johann Guilleminot, Ikshwaku Atodaria