A Two-Surface Model with Anisotropic Hardening and Nonassociated Flow Rule for Geomaterials

Kiyama, Satoshi; Hasegawa, Takashi

doi:10.3208/sandf.38.45

Cited by 6 publications

(1 citation statement)

References 33 publications

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“…Frequently, the constitutive models for anisotropy are developed following elastoplasticity theory, where the deformation is decomposed into elastic and plastic parts (Ghaboussi and Monen 1984, Kumbhojkar and Banerjee 1993, Oda 1993, Duveau et al 1998, Kiyama and Hasegawa 1998, Pietruszczak and Pande 2001, Li and Dafalias 2004. Consequently, the effect of anisotropy on the elastic and plastic behaviour is treated separately.…”

Section: Introductionmentioning

confidence: 99%

Simple shear in sand with an anisotropic hypoplastic model

Osinov

2006

Geomechanics and Geoengineering

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The paper deals with the anisotropic extension of an inherently isotropic hypoplastic constitutive model. Inherent transverse isotropy is incorporated into the model with the help of an operator of anisotropy which is determined by the orientation of the bedding plane and three constitutive parameters. The approach is rather general and is not connected with any specific type of constitutive model. In the present study, two possible extensions of the hypoplastic equation are considered: the application of the anisotropy operator to the nonlinear part of the equation and to the whole equation. The two modifications are exemplified by numerical calculations of simple shear.

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