期刊
COMPUTERS AND GEOTECHNICS
卷 33, 期 1, 页码 1-14出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compgeo.2006.01.002
关键词
diffuse failure; bifurcation; instability; sand; elasto-plasticity; undrained triaxial
While localized failure has been extensively studied, diffuse failure modes are still not characterized from an experimental point of view and not described by proper criteria from a theoretical point of view. The purpose of this paper is to tackle both these questions by considering, in a first part, undrained triaxial loading on very loose sands and the failure mode occurring at q-peak, and, in a second part, the bifurcation domain of sands in plane strain conditions through strain proportional paths and incrementally piece-wise linear and non-linear constitutive relations. (C) 2006 Elsevier Ltd. All rights reserved.
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