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Comparison of non‐local and polar modelling of softening in hypoplasticity
Author(s) -
Maier Th.
Publication year - 2004
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.334
Subject(s) - oedometer test , softening , constitutive equation , polar , geotechnical engineering , shear band , geology , foundation (evidence) , mechanics , shear (geology) , structural engineering , materials science , engineering , physics , finite element method , law , composite material , astronomy , political science , soil science , soil water
The paper deals with the comparison of a non‐local and a polar (Cosserat) hypoplastic model. The hypoplastic constitutive law in the version of von Wolffersdorff is chosen as local reference model. For the comparison the results of biaxial tests on dense Hostun Rf sand are predicted with both enhanced models. The comparison is based on a strict separation of input data from triaxial‐ and oedometer tests and output data from biaxial tests. The comparison is drawn in terms of the shear band width, the load–displacement curves and the influence of the pressure level. Finally, the non‐local and the polar hypoplastic model are applied on the strip foundation problem. Copyright © 2004 John Wiley & Sons, Ltd.