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DEM simulations of sandstone under true triaxial compressive tests
Acta Geotechnica, 2016Numerically simulated true triaxial compression tests (σ 1 ≥ σ 2 ≥ σ 3) are conducted in this study to elucidate the failure mechanism of sandstone using 3D discrete element method (DEM), in particular the effect of the intermediate principal stress (σ 2 ...
K. Duan, C. Y. Kwok, X. Ma
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Simulation of triaxial and true triaxial tests on natural and reconstituted Pisa clay
Géotechnique, 2002A kinematic hardening/bounding surface plasticity model is used to reproduce the experimental behaviour of the natural soft clay found at Pisa. The model accounts for progressive loss of structure with plastic strains, and can be made to degenerate into a structureless state. Model parameters are calibrated on drained triaxial probing tests on natural
CALLISTO, Luigi, GAJO A., MUIR WOOD D.
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True-triaxial compressive strength of Maha Sarakham salt
International Journal of Rock Mechanics and Mining Sciences, 2013Abstract True triaxial compressive strengths of the Maha Sarakham salt are experimentally determined by using a polyaxial load frame. The salt specimens with nominal dimensions of 5.4×5.4×10.8 cm 3 are loaded to failure with the minimum principal stress, σ 3 , varying from 0 to 7 MPa, and the intermediate principal stress, σ 2 , varying from 0 ...
Tanapol Sriapai +2 more
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True Triaxial Tests on Natural Shanghai Clay
2018Drained true triaxial tests on undisturbed and remolded Shanghai silty clay were carried out to investigate the influence of intermediate principle stress on the strength and deformation of natural clay. Test results show that not only the shear strength, but also the volume change of Shanghai clay decreases with the increase of Lode angle θ. The shear
Guan-lin Ye +3 more
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Endochronic Modeling of Sand in True Triaxial Test
Journal of Engineering Mechanics, 1985The endochronic constitutive equation is written in differential form, which is then used to describe the deviatoric behavior of drained sand in true triaxial test. Explicit equations have been derived. The modified concept of intrinsic time is applied so that no built‐in discontinuities exist in the constitutive equation. Triaxial compression test (TC)
Han C. Wu +2 more
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A rock test cell with true triaxial capability
Geotechnical & Geological Engineering, 1999Conventional so-called triaxial test cells apply the axial stress to a cylindrical sample using steel platens, with the confining stress developed via an annulus of hydraulic fluid retained by a liner in a pressure cell. This does not allow differentiation between the two principal stresses around the core and inhibits the realism with which the rocks ...
B.D.G. Smart +2 more
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Analysis of Shear Banding in True Triaxial Tests on Sand
Journal of Engineering Mechanics, 2001A series of true triaxial tests have been performed on rectangular prismatic specimens of Santa Monica Beach sand at three different relative densities to study the occurrence of failure, mechanism...
Lade, Poul V., Wang, Q.
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Behaviour of carbonated rocks under true triaxial compression
2011SCOPUS: ch.b ; info:eu-repo/semantics ...
Descamps, Fanny +4 more
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Results of true triaxial strength tests on rock salt
Engineering Fracture Mechanics, 1990Abstract Knowledge of the thermomechanical properties of rock salt is important for the dimensioning of a permanent repository for radioactive wastes in a salt dome and for the necessary safety analysis, as well as for the design of mines and caverns.
U Hunsche, H Albrecht
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Strain Localization Conditions Under True Triaxial Stress States
2011This work uses a bifurcation approach to develop theoretical predictions for deformation band formation for a suite of true triaxial tests on Castlegate sandstone. In particular, the influence of the intermediate principal stress on strain localization is examined.
Kathleen A. Issen +2 more
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