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Proportional stress and strain paths in barodesy
Author(s) -
Medicus Gertraud,
Kolymbas Dimitrios,
Fellin Wolfgang
Publication year - 2016
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.2413
Subject(s) - stress path , dilatant , stress (linguistics) , relation (database) , constitutive equation , path dependent , path (computing) , mathematics , geotechnical engineering , structural engineering , mathematical analysis , geology , engineering , computer science , finite element method , cauchy stress tensor , linguistics , philosophy , database , programming language
Asymptotic behaviour of soil deserves particular attention: If soil is deformed with a proportional strain path, the resulting stress path approaches asymptotically a proportional stress path. In this arcticle, we review existing experimental evidence on this phenomenon and discuss it in the frame of barodesy. Here, the presented relation is a modification of a barodetic expression and includes Jáky's relation, inhibits tensile stress and is able to predict asymptotic stress ratios based on experimental findings. The proposed relation is compared with experimental data as well as with the so‐called stress‐dilatancy relations and other constitutive relations proposed so far. Copyright © 2015 John Wiley & Sons, Ltd.