Granular mechanics of the critical state of coarse soils

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4 Citas (Scopus)

Resumen

In this paper, coarse soils are modeled by granular packings, because both of them have similar characteristics, such as: gaseousity, duality, dilatancy, fragility and hyperbolicity. By virtue of these properties, it is assumed that the contact force ensemble remains the same, while the packing changes because of its dual character, regarding the compactness of the soil. For the dense state, both assemblages coincide themselves, forming chains of contact forces; the transmission of stresses obeys the Trollope's hypothesis of centroidal reactions; and the volumetric strain increases. For the loose state, the packing adopts a "passive" distribution, yielding a constant angle of internal friction at failure; so that, the strain is contractive and the stress transmission occurs fundamentally by shear, in a similar fashion to the Rowe's mechanism. In the figures, the good correspondence between the results of the theory and the reported experimental data is shown.

Idioma originalInglés
Título de la publicación alojadaPowders and Grains 2013 - Proceedings of the 7th International Conference on Micromechanics of Granular Media
Páginas197-200
Número de páginas4
DOI
EstadoPublicada - 2013
Evento7th International Conference on Micromechanics of Granular Media: Powders and Grains 2013 - Sydney, NSW, Australia
Duración: 8 jul. 201312 jul. 2013

Serie de la publicación

NombreAIP Conference Proceedings
Volumen1542
ISSN (versión impresa)0094-243X
ISSN (versión digital)1551-7616

Conferencia

Conferencia7th International Conference on Micromechanics of Granular Media: Powders and Grains 2013
País/TerritorioAustralia
CiudadSydney, NSW
Período8/07/1312/07/13

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