Results 11 to 20 of about 1,462,254 (143)

Behaviour of coarse grained soil with rotation path of stress Lode’s angle

open access: yesYantu gongcheng xuebao, 2020
In this study, the behaviour of coarse grained soil following the rotation path of stress Lode’s angle is studied under the constant mean stress p and the constant deviatoric stress q in stress space.
ZHOU Yue-feng , PAN Jia-jun , CHENG Zhan-lin , ZUO Yong-zhen
doaj   +1 more source

Failure in granular materials based on acoustic tensor: a numerical analysis [PDF]

open access: yesEPJ Web of Conferences, 2021
We investigate localization in granular material with the support of numerical simulations based upon DEM (Distinct Element Method). Localization is associated with a discontinuity in a component of the incremental strain over a plane surface through the
Recchia Giuseppina   +3 more
doaj   +1 more source

Phase-Field Modeling Fracture in Anisotropic Materials

open access: yesAdvances in Civil Engineering, 2021
The phase-field method is a widely used technique to simulate crack initiation, propagation, and coalescence without the need to trace the fracture surface.
Haifeng Li   +3 more
doaj   +1 more source

Rheological stratification in impure rock salt during long-term creep: morphology, microstructure, and numerical models of multilayer folds in the Ocnele Mari salt mine, Romania [PDF]

open access: yesSolid Earth, 2021
At laboratory timescales, rock salt samples with different composition and microstructure show variance in steady-state creep rates, but it is not known if and how this variance is manifested at low strain rates and corresponding deviatoric stresses ...
M. Adamuszek   +3 more
doaj   +1 more source

Exploring the undrained behaviour of granular clumps after isotropic and Ko-consolidation paths using DEM

open access: yesForces in Mechanics, 2023
This paper investigates the undrained behaviour of granular clumps after isotropic and Ko-consolidation paths using a three-dimensional discrete element method (3D-DEM).
Shiva Prashanth Kumar Kodicherla   +3 more
doaj   +1 more source

Failure and deformation characteristics of shale subject to true triaxial stress loading and unloading under water retention and seepage

open access: yesRoyal Society Open Science, 2022
A multi-functional true triaxial fluid-structure coupling system was used to conduct water retention and seepage tests of shale under true triaxial loading and unloading stress paths.
Shujian Li   +4 more
doaj   +1 more source

Three-dimensional strength criterion for transverse isotropic geomaterials

open access: yesYantu gongcheng xuebao, 2018
The strength characteristic of the transverse isotropic soil include two aspects. On one hand, the strength curves are not symmetric around the three principal stress axes on deviatoric plane.
LU De-chun , LIANG Jing-yu , WANG Guo-sheng , DU Xiu-li
doaj   +1 more source

Influences of 3D model generalization approach on calculation of stress and strain of soils under plane strain

open access: yesYantu gongcheng xuebao, 2023
To describe the shear yield and failure behavior of soils in the generalized 3D stress space, the critical state constitutive model needs to be combined with some strength criteria.
YAO Yangping , WU Xiaotian , CUI Wenjie
doaj   +1 more source

Influence of the Fractal Distribution of Particle Size on the Critical State Characteristics of Calcareous Sand

open access: yesFractal and Fractional, 2022
To study the influence of the fractal distribution of particle size on the critical state characteristics of calcareous sand, a type of calcareous sand from a certain reef of the South China Sea was used in this study.
Xue Shen   +3 more
doaj   +1 more source

Numerical damage investigation for RC slab-column connections

open access: yesAin Shams Engineering Journal, 2021
This article presents a numerical Concrete Damage- Plastic (CDP) model for investigating the complex behavior of the RC slab-column connection under monotonic loading.
Hany Madkour   +2 more
doaj   +1 more source

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