This paper presents an extension of the discrete element method using a phase-field formulation to incorporate grain shape and its evolution. The introduction of a phase variable …
Á Orosz, K Bagi - International Journal of Rock Mechanics and Mining …, 2023 - Elsevier
Blocky rock and stone structures (such as jointed rocks mass, masonry structures and railway ballast) are often submitted to dynamic effects. Their mechanical behaviour can be …
J Xiao, X Zhang, D Zhang, L Xue, S Sun… - Transportation …, 2020 - Elsevier
To quantitatively investigate the morphological features of railway ballast, a new statistical index, Curvature Index (CI), was presented. With a set of 584 digitized railway ballast …
S Liu, W Hu, J Gong, Z Nie - Granular Matter, 2022 - Springer
Binary geotechnical mixtures are usually studied as homogeneous materials; however, it is difficult for coarse and fine particles to mix evenly during the formation process of binary …
U Ali, M Kikumoto - Journal of Geotechnical and Geoenvironmental …, 2024 - ascelibrary.org
This paper comprehensively investigates the influence of mixing angular particles on macroscopic shear strength and microscopic particle motion in granular mixtures. Circular …
The effect of particle shape on micro and macroscopic behaviour is investigated experimentally through a series of biaxial compression tests on round and angular rods …
The applicability of particle-scale modeling using the discrete-element method (DEM) is typically evaluated by comparing simulation results with stress–strain responses observed in …
This research initially investigates the mechanical behavior of fresh and used ballast grain assemblies through a combination of laboratory experiments and discrete element modeling …
AM Alshammari, D Fratta - Advanced Powder Technology, 2024 - Elsevier
The angle of repose is a simple yet helpful parameter to evaluate the frictional response of particulate media. Due to its importance, multiple scientific and engineering fields rely on the …