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Extended Finite Element Method for hygro‐mechanical analysis of crack propagation in porous materials
Author(s) -
Leonhart Dirk,
Meschke Günther
Publication year - 2011
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201110072
Subject(s) - classification of discontinuities , discontinuity (linguistics) , finite element method , porous medium , moisture , representation (politics) , displacement field , displacement (psychology) , materials science , extended finite element method , shear (geology) , porosity , mechanics , structural engineering , geotechnical engineering , geology , composite material , engineering , mathematics , physics , mathematical analysis , psychology , politics , political science , law , psychotherapist
In computational structural analyses, strong discontinuities, such as propagating cracks in concrete structures, joints in rocks or shear bands in soft soils, the highly accelerated moisture transport in the opening discontinuities has to be taken into account. The paper is concerned with an Extended Finite Element model for the numerical representation of crack propagation in partially saturated porous materials. Based on an extended variational formulation for the simulation of moisture transport in cracks, enhanced approximations of the displacement field and the moisture flux across the discontinuity are adopted. (© 2011 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)