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A constitutive model for sand with anisotropic hardening rule
Author(s) -
Mróz Z.,
Pietruszczak St.
Publication year - 1983
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.1610070304
Subject(s) - constitutive equation , stress space , hardening (computing) , anisotropy , geotechnical engineering , materials science , strain hardening exponent , granular material , mechanics , geology , structural engineering , finite element method , engineering , composite material , physics , layer (electronics) , quantum mechanics
An anisotropic hardening model for sand or other granular materials is presented. The state of initial densification is represented by a configuration surface and the state of loading by a loading surface in the stress space. The domain of elastic response may not exist and the irreversible strain is assumed to occur for both active and reverse loading. The derived constitutive equations are applicable both for dense and loose sands. Some model predictions are compared with available experimental data for triaxial compression and extension under undrained condition.