Computational mechanics of multiphase materials-modeling strategies at different scales

  • G¨unther Meschke Institute for Structural Mechanics, Ruhr University Bochum
  • Dirk Leonhart Institute for Structural Mechanics, Ruhr University Bochum
  • Jithender J. Timothy Institute for Structural Mechanics, Ruhr University Bochum
  • Zhou Meng-Meng Institute for Structural Mechanics, Ruhr University Bochum

Abstract

The paper addresses various scale-bridging modeling and discretization strategies for multiphase porous materials, starting with a micromechanics model for ion transport within the pore space to generate homogenized diffusion coefficients. Using homogenized macroscopic properties, the theory of poromechanics provides the modeling framework for the macroscopic representation of transport and phase change processes as it is demonstrated for freezing of porous materials using a three-field formulation. The theory of poromechanics is again employed as an appropriate representation of more or less intact porous materials, in conjunction with a two-field Extended Finite Element model as a scale bridging tool to describe coupled hydro-mechanical processes in cracked porous materials at a macroscopic level.

Keywords

micromechanics, poromechanics, Extended Finite Element Method, homogenization, multi-phase models, diffusion, durability, soil freezing,

References

Published
Jan 25, 2017
How to Cite
MESCHKE, G¨unther et al. Computational mechanics of multiphase materials-modeling strategies at different scales. Computer Assisted Methods in Engineering and Science, [S.l.], v. 18, n. 1–2, p. 73–89, jan. 2017. ISSN 2299-3649. Available at: <https://cames.ippt.pan.pl/index.php/cames/article/view/122>. Date accessed: 26 jan. 2022.
Section
Articles