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Diffuse failure in geomaterials : experiments and modelling

Huynh Dat Vu Khoa 1 Ioannis O. Georgopoulos 2 Félix Darve 1 Farid Laouafa 3
1 3SR - Laboratoire sols, solides, structures - risques [Grenoble]
2 Laboratory of Geomaterials
3 INERIS - Institut National de l'Environnement Industriel et des Risques
Abstract : 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.
Keywords : DIFFUSE FAILURE BIFURCATION INSTABILITY SAND ELASTO-PLASTICITY UNDRAINED TRIAXIAL
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https://hal-ineris.archives-ouvertes.fr/ineris-00962999
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Submitted on : Friday, March 21, 2014 - 2:07:05 PM
Last modification on : Friday, January 15, 2021 - 11:56:06 AM

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Huynh Dat Vu Khoa, Ioannis O. Georgopoulos, Félix Darve, Farid Laouafa. Diffuse failure in geomaterials : experiments and modelling. Computers and Geotechnics, Elsevier, 2006, 33 (1), pp.1-14. ⟨10.1016/j.compgeo.2006.01.002⟩. ⟨ineris-00962999⟩

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