...). The components of the stress tensor are determined as: 1 σ i j = 1 A ∑ N l i f j anisotropy clays constitutive modelling discrete-element modelling fabric structure of soils thermodynamics Angelo Amorosi and Fabio Rollo acknowledge the financial...

...-element modelling granular materials loading reversal stress probe Natural Science Foundation of China 52338008 The first two authors would like to thank the Research Grants Council (RGC) of the HKSAR for providing financial support through grants N_PolyU526/23 and AoE/E-603/18. Z. Yang...

... coupling computational fluid dynamics/CFD contact erosion cyclic hydraulic gradients discrete-element modelling erosion macroscopic deformation micro-mechanism microstructure When modelling using the CFD–DEM coupled method, it is essential to ensure high computational accuracy and efficiency...

... creep discrete-element modelling particle crushing time dependence The time-dependent behaviour of granular soils has been recognised as a crucial mechanism in many phenomena of engineering significance, such as the observed large shaft capacity increase with time of driven piles, known...

... tangential force F_t is further updated in DEM using an incremental form as follows: 27 04 2023 28 12 2023 © 2025 Emerald Publishing Limited 2025 discrete-element modelling micromechanics multi-scale particle shape features sands small-strain stiffness...

... . Johnson , K. L. (1985). Contact mechanics . Cambridge, UK : Cambridge University Press . 10.1017/CBO9781139171731 . Katagiri , J. (2019). A novel way to determine number of spheres in clump-type particle-shape approximation in discrete-element modelling . Géotechnique   69 , No. 7...

... rate ε ˙ . The simulation procedure is divided into three stages. 22 02 2023 16 08 2023 © 2025 Emerald Publishing Limited 2025 discrete-element modelling fabric/structure of soils numerical modelling particle-scale behaviour 1 ∫ Ω S u...

... composed of the largest classes of grains, supporting the fact that grading has no effect on the critical state shear strength and d_max correctly serves to scale a granular sample to the size of the testing device. critical state discrete-element modelling force networks grain...

... a typical pull-off force of 100 nN for colloidal (∼1 μm) particles. clay discrete-element modelling particle-scale behaviour This paper presents a new particle-scale model capable of reproducing all important aspects of clay behaviour. Numerical tools such as the discrete-element method (DEM...

... the microscopic fabric anisotropy and macroscopic wave velocity anisotropy is obtained for both CT and TT tests. 26 09 2022 12 12 2022 © 2023 Thomas Telford Ltd 2023 discrete-element modelling fabric anisotropy granular materials micromechanics wave velocity anisotropy Figure 3...

...-tomography (μCT). To this end, a graph neural network (GNN) is introduced to predict the contact force chains of granular materials at the end of a shear increment based on the evolution of contact network and grain displacement during that shear increment. Meanwhile, discrete-element modelling (DEM...

... 2025 discrete-element modelling granular materials micro–nano geomaterials statistical analysis stress analysis Grounding continuum descriptions of granular soil behaviour on particle-scale micromechanics adds theoretical consistency to soil mechanics but is also advantageous form...

... network discrete-element modelling dynamics erosion flow field variation microstructure Transportation infrastructure, such as railway roadbeds and bridge foundations, is constantly exposed to natural elements and influenced by complex hydromechanical coupling factors, including natural...

... anisotropy discrete-element modelling elasticity granular material microstructure Granular materials are widely recognised to be anisotropic. Numerous experimental and numerical studies have revealed that microstructural anisotropy has a significant impact on the elasticity, volume change...

... to the original publication and authors. The full terms of this licence may be seen at Link to the terms of the CC BY 4.0 licence. anisotropy discrete-element modelling fabric/structure of soils particle-scale behaviour shear strength For granular materials the term ‘particle shape’ informs...

...., 2020 ; Cheng et al., 2020b). Furthermore, the whole sample B can be expressed as 4 B = [ real ( C n j m ) , imag ( C n j m ) ] T discrete-element method discrete-element modelling fabric/structure of soils morphological...

... 1 × 10⁻⁶ 16 11 2021 29 06 2022 © 2022 Emerald Publishing Limited 2022 discrete-element modelling geotechnical engineering granular materials landslides soil/structure interaction Granular flow is characterised by a large amount of granular material...

... 30 03 2022 © 2022 Thomas Telford Ltd 2022 discrete-element modelling fabric/structure of soils particle crushing/crushability For implementation, inverse transform sampling is used to determine the critical stresses directly 5 σ c = σ c 0 − d 0...

... with δ_n and δ_s being the normal and tangential displacements of the contact. Fig. 1. Grain size distribution of the DEM sample anisotropy discrete-element modelling fabric/structure of soils liquefaction sands Given the difficulties and costs in experimental...

... 2021 discrete-element modelling landslides numerical modelling The flow dynamics of debris flows are complicated by the interaction between the solid and the fluid phases. Solid–fluid interaction can alter pore fluid pressure, which in turn regulates the Coulomb friction within...