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A bridge between dual porosity and multiscale models of heterogeneous deformable porous media

Hajiabadi, M. R ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. DOI: 10.1002/nag.2860
  3. Publisher: John Wiley and Sons Ltd , 2019
  4. Abstract:
  5. In this paper, a multiscale homogenization approach is developed for fully coupled saturated porous media to represent the idealized sugar cube model, which is generally employed in fractured porous media on the basis of dual porosity models. In this manner, an extended version of the Hill-Mandel theory that incorporates the microdynamic effects into the multiscale analysis is presented, and the concept of the deformable dual porosity model is demonstrated. Numerical simulations are performed employing the multiscale analysis and dual porosity model, and the results are compared with the direct numerical simulation through 2 numerical examples. Finally, a combined multiscale-dual porosity technique is introduced by employing a bridge between these 2 techniques as an alternative approach that reduces the computational cost of numerical simulation in modeling of heterogeneous deformable porous media. © 2018 John Wiley & Sons, Ltd
  6. Keywords:
  7. Sugar cube RVE ; Computation theory ; Deformation ; Numerical methods ; Numerical models ; Porous materials ; Superconducting materials ; Computational costs ; Deformable porous media ; Dual porosity ; Dual porosity model ; Fractured porous media ; Multi scale analysis ; Multiscale homogenization ; Saturated porous media ; Porosity ; Computer simulation ; Heterogeneous medium ; Homogeneity ; Numerical model ; Porous medium
  8. Source: International Journal for Numerical and Analytical Methods in Geomechanics ; Volume 43, Issue 1 , 2019 , Pages 212-238 ; 03639061 (ISSN)
  9. URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/nag.2860