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Interface elements for singular plasticity points
Author(s) -
Van Langen H.,
Vermeer P. A.
Publication year - 1991
Publication title -
international journal for numerical and analytical methods in geomechanics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.419
H-Index - 91
eISSN - 1096-9853
pISSN - 0363-9061
DOI - 10.1002/nag.1610150502
Subject(s) - plasticity , classification of discontinuities , plane stress , finite element method , indentation , rotational symmetry , displacement (psychology) , mohr–coulomb theory , geometry , structural engineering , coulomb , plane (geometry) , mathematics , mathematical analysis , mechanics , geotechnical engineering , geology , materials science , engineering , physics , psychotherapist , composite material , quantum mechanics , electron , psychology
Zero‐thickness interface elements are applied to solve plasticity problems involving singular points where stresses and displacements are non‐unique. Singular points occur in soil–structure interaction, e.g. at the ridges of footings, buried structures and foundation piles. Here the introduction of potential displacement discontinuities appears to give quite accurate finite element solutions. This is demonstrated for indentation problems both for plane strain and axisymmetric situations. In all problems the soil behaviour is modelled by the elastic–plastic Mohr–Coulomb model.