Effect of particle shape on the progressive failure of shield tunnel face in granular soils by coupled FDM-DEM method
The face failure of tunnels has been extensively studied. However, the effect of particle
shape on the failure process still remains unclear. In this paper, the progressive face failure …
shape on the failure process still remains unclear. In this paper, the progressive face failure …
A thermodynamics-based micro-macro elastoplastic micropolar continuum model for granular materials
J Tian, Y Lai, E Liu, C He - Computers and Geotechnics, 2023 - Elsevier
A micro–macro elastoplastic micropolar continuum model for granular materials in the dry
and pendular states is proposed on the basis of thermodynamics. The independent …
and pendular states is proposed on the basis of thermodynamics. The independent …
DEM analysis of small and small-to-medium strain shear modulus of sands
Despite the significant progresses in discrete-based numerical studies of granular materials,
most efforts have been placed in the study of large deformation problems and there are …
most efforts have been placed in the study of large deformation problems and there are …
A novel multi-scale large deformation approach for modelling of granular collapse
Collapse of granular material is usually accompanied by long run-out granular flows in
natural hazards, eg rock/debris flow and snow avalanches. This paper presents a novel …
natural hazards, eg rock/debris flow and snow avalanches. This paper presents a novel …
Formulation and implementation of an elastoplastic constitutive model for sand‐fines mixtures
ZC Sun, J Chu, Y **ao - International Journal for Numerical and …, 2021 - Wiley Online Library
Sand‐fines mixtures are commonly used engineered materials, and their mechanical
behavior is significantly affected by density, confining pressure, as well as fines content …
behavior is significantly affected by density, confining pressure, as well as fines content …
[HTML][HTML] An evolution law for fabric anisotropy and its application in micromechanical modelling of granular materials
CF Zhao, NP Kruyt - International Journal of Solids and Structures, 2020 - Elsevier
Micromechanical studies of granular materials have demonstrated the importance of their
microstructure to their behaviour. This microstructure is often characterized by fabric tensors …
microstructure to their behaviour. This microstructure is often characterized by fabric tensors …
An approach to calculating large strain accumulation for discrete element simulations of granular media
For research on granular materials, establishing a method to calculate continuum strain from
particle displacements is necessary for understanding the material behaviour at macro‐level …
particle displacements is necessary for understanding the material behaviour at macro‐level …
Programming a micro-mechanical model of granular materials in Julia
Modelling the mechanical behaviour of granular materials using the insight of physics, such
as discrete element method (DEM), usually costs a lot of computing resources as a result of …
as discrete element method (DEM), usually costs a lot of computing resources as a result of …
Three-dimensional numerical modelling of progressive failure of caisson foundation in sand using a coupled FDM–DEM method
ZY Yin - Ocean Engineering, 2022 - Elsevier
Bearing capacity and the relationship between loading and displacement for caisson
foundations have been widely studied, but failure mechanism and loading response at the …
foundations have been widely studied, but failure mechanism and loading response at the …
Bearing capacity and failure mechanism of strip footings on anisotropic sand
Sand typically exhibits anisotropic internal structure (or fabric), and the fabric anisotropy has
a dramatic influence on the mechanical behavior of sand. Meanwhile, the fabric evolves …
a dramatic influence on the mechanical behavior of sand. Meanwhile, the fabric evolves …