Effects of Cross Anisotropy on Three-Dimensional Behavior of Sand. I: Stress–Strain Behavior and Shear Banding

Abelev, Andrei; Lade, Poul V.

doi:10.1061/(asce)0733-9399(2003)129:2(160)

Cited by 109 publications

(34 citation statements)

References 22 publications

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“…Abelev & Lade (2003) and Lade et al (2008) 130 performed different tests on sand with rotation of principal stress axes with regard to the isotropic planes of the material. They concluded that the material strength (peak value) as well as the shear band inclination and pattern may vary with the direction of loading (Fig.…”

Section: Laboratory Testsmentioning

confidence: 99%

“…The influence of cross-anisotropy on the material behaviour and on the shear 20 strain localisation has been investigated by different authors (Abelev & Lade, 2003;Tejchman et al, 2007;Lade et al, 2008). They concluded that the material strength as well as the shear band pattern on small-scale specimens may vary with the direction of loading or with the orientation of the bedding planes.…”

Section: Introductionmentioning

confidence: 99%

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Shear banding modelling in cross-anisotropic rocks

Pardoen

Seyedi²,

Collin

2015

International Journal of Solids and Structures

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Sedimentary geomaterials such as rocks frequently exhibit cross-anisotropic properties and their behaviour depends on the direction of loading with respect to their microstructure. As far as material rupture is concerned, localised deformation in shear band mode appears generally before cracks and material failure. cavation fractured zone that develops around a gallery is strongly influenced by the material anisotropy.

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Section: Laboratory Testsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Shear banding modelling in cross-anisotropic rocks

Pardoen

Seyedi²,

Collin

2015

International Journal of Solids and Structures

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“…1 show evidently that the orientation of the bedding plane relative to the principal stress directions has a pronounced effect on the stress-strain behaviour (Arthur and Phillips 1975, Lam and Tatsuoka 1988, Tatsuoka et al 1990, 1991, Abelev and Lade 2003. The shear stiffness, peak friction angle and average volume change are usually larger and strain corresponding to the peak value are smaller for loading perpendicular to the bedding plane than for loading parallel to it.…”

Section: Introductionmentioning

confidence: 89%

Modeling of textural anisotropy in granular materials with stochastic micro-polar hypoplasticity

Tejchman

Wu²

2007

International Journal of Non-Linear Mechanics

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The paper deals with a numerical analysis of the effect of textural anisotropy on the behaviour of cohesionless granular materials with consideration of shear localization. For a simulation of the mechanical behavior of a granular material during a monotonic deformation path, an isotropic micropolar hypoplastic constitutive model was used. To describe textural effects, spatially correlated random fields of the initial void ratio were subject to rotation against the horizontal axis. The 2D random fields were generated using a conditional rejection method. The results were compared with those obtained with an anisotropic micro-polar constitutive model for an uniform distribution of the initial void ratio. The calculations were carried out with a dense granular specimen during plane strain compression under constant lateral pressure.Key words: finite element method, granular material, micro-polar hypoplasticity, random field, shear zone, textural anisotropy A c c e p t e d m a n u s c r i p t 2

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“…The proposed anisotropic non-coaxial plasticity model and bifurcation analysis are utilized to predict the triaxial test results of Abelev and Lade (2003). The specimen used in all the tests was made of Santa Monica beach sand, which was uniformly graded and consists of angular to sub-angular particles with sizes in the range of 0.075 to 0.600 mm.…”

Section: Prediction Of Strain Localizationmentioning

confidence: 99%

“…There are two major types of anisotropy: one is attributed to the initial fabric, and the other is a result of loading and can develop in originally isotropic material. The work of Abelev and Lade (2003) has shown that when there was no rotation of the principal stresses and the directions of loading and soil deposition coincide, the initial anisotropic fabric largely controls the deformation and shear strength. That is, the strength criterion and corresponding parameters are two critical considerations when building a constitutive relationship, so it is necessary to propose a conscious criterion to calibrate the strength of inherent anisotropic soils.…”

Section: Introductionmentioning

confidence: 99%

The Onset of Strain Localization in Cross-Anisotropic Soils Under True Triaxial Condition

Lü

Huang

Qian

2011

Soils and Foundations

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The in‰uences of inherent cross-anisotropy on soil strength on the homogeneous deformation and bifurcation characteristic of the stress-strain relationship are studied. By neglecting the cohesion term and employing an elliptical shape function in Mohr-Coulomb failure criterion, a 3D anisotropic failure criterion is proposed to describe the strength of cross-anisotropic sands under true triaxial conditions. Based on the proposed failure criterion, the in‰uence of the anisotropic parameter on the failure curve on the deviatoric plane and the relationship between the peak friction angle and the intermediate principal stress ratio are obtained. The suitability of the criterion is justiˆed by comparing with a series of true triaxial tests on sands without strain localization. The proposed failure criterion is adopted to build a three dimensional anisotropic elasto-plastic model, which allows the bifurcation analysis to be incorporated with the non-coaxial ‰ow rule for the purpose of studying the onset of strain localization. Compared with the true triaxial tests under several intermediate principal stress ratios conditions in the literature, the proposed model and bifurcation analysis is shown to be capable of predicting the in‰uence of inherent cross-anisotropy on the onset of strain localization.

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Effects of Cross Anisotropy on Three-Dimensional Behavior of Sand. I: Stress–Strain Behavior and Shear Banding

Cited by 109 publications

References 22 publications

Shear banding modelling in cross-anisotropic rocks

Shear banding modelling in cross-anisotropic rocks

Modeling of textural anisotropy in granular materials with stochastic micro-polar hypoplasticity

The Onset of Strain Localization in Cross-Anisotropic Soils Under True Triaxial Condition

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