Results 31 to 40 of about 12,504 (308)

Simplified DEM-Based Modelling and Simulation of the Track Ballast

open access: yesBuildings, 2023
This study proposes a rational method for modelling ballast in tracks based on the discrete element method (DEM) approach. To simulate a ballast consisting of a group of gravels, it is essential to use the discrete element method.
Youngwoong Kwon   +3 more
doaj   +1 more source

Study on Sliding Friction Coefficient in Block Element Method Based on Experimental Method

open access: yesApplied Sciences
The mechanics and motion behavior of granular materials affect the production and life of human beings. In order to study the influence of the sliding friction coefficients corresponding to different contact types in the block discrete element method on ...
Pengcheng Liu, Jun Liu, Yue Wang
doaj   +1 more source

Contact model and numerical modelling results: “Compaction of the Groningen Gas Reservoir Sandstone: Discrete Element Modelling Using Microphysically Based Grain-Scale Interaction Laws”

open access: yes, 2021
Reservoir compaction, surface subsidence and induced seismicity are often associated with prolonged hydrocarbon production. Recent experiments conducted on the Groningen gas field’s Slochteren sandstone reservoir rock, at in-situ conditions, have shown ...
Mohammad Hadi Mehranpour (Utrecht University)
core   +1 more source

Capacity and power analysis on inclined screw conveyor using DEM simulation

open access: yesJEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering), 2023
DEM is a method based on the theory of molecular dynamics that can simulate the movement of granular materials. One of the advantages of this method is it can simulate accurately without creating a real object.
Ahmad Faishol, Mulyadi, Edi Widodo
doaj   +1 more source

Influence of muscle-tendon complex geometrical parameters on modeling passive stretch behavior with the Discrete Element Method [PDF]

open access: yes, 2016
The muscle-tendon complex (MTC) is a multi-scale, anisotropic, non-homogeneous structure. It is composed of fascicles, gathered together in a conjunctive aponeurosis. Fibers are oriented into the MTC with a pennation angle. Many MTC models use the Finite
LAPORTE, Sébastien   +6 more
core   +1 more source

A review of discrete modeling techniques for fracturing processes in discontinuous rock masses

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2014
The goal of this review paper is to provide a summary of selected discrete element and hybrid finite–discrete element modeling techniques that have emerged in the field of rock mechanics as simulation tools for fracturing processes in rocks and rock ...
A. Lisjak, G. Grasselli
doaj   +1 more source

Calibration of DEM simulations for dynamic particulate systems

open access: yesPapers in Physics, 2022
Calibration and validation represent crucial but often-overlooked ingredients in the successful application of discrete element method (DEM) simulations.
Christopher Windows-Yule, Aurelien Neveu
doaj   +1 more source

Characterisation of contact parameters of sand grains to be used for discrete element modelling [PDF]

open access: yesE3S Web of Conferences, 2019
Discrete element method (DEM) is a numerical technique that models the material as a combination of discrete particles which interact with each other through the contacts springs.
Balamonica K., Goh Siang Huat
doaj   +1 more source

Discrete element method, a tool to investigate complex thermo mechanical behaviour: application to friction stir welding [PDF]

open access: yes, 2009
In material forming or cutting, the contact zone between the tool and the working piece is often very difficult to analyse because of diverse local phenomena. In the special case of FSW, a specific difficulty is the study of material mixing. In this work,
I. Terreros   +11 more
core   +1 more source

A coupled fluid FEM-DEM technique for predicting blasting operations in tunnels

open access: yesUnderground Space, 2018
We present recent developments in the coupling of the finite element method (FEM) and the discrete element method (DEM) for the analysis of rock blasting operations in tunnels.
Francisco Zárate   +4 more
doaj   +1 more source

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