The discrete element method (DEM) has been confirmed as an effective numerical method
for modelling railway ballast, and successfully used to analyse a wide range of ballast …

Yade is an extensible open-source framework for discrete numerical models, focused on the
Discrete Element Method. The computation parts are written in c++ using a flexible object …

In any DEM simulation, the chosen particle shape will greatly influence the simulated
material behaviour. For a specific material, eg railway ballast, it remains an open question …

Real-time evaluation of the mechanical qualities of ballast beds is essential for improving
tamping effort in railway maintenance. This study aims at evaluating the mechanical …

Dynamic stabilization is a process of the railway lines that are newly built must go through
before it is put into operation. This study investigates the characteristics of stabilizing …

The gravel content (GC) may influence the mechanical properties of sand-gravel mixture
(SGM) used in earth structures and may compromise the stability of such structures. The …

The sand-gravel mixture is a binary geotechnical material widely used in construction. Its
shear behavior is a significant factor influencing the relevant structure safety or slope …

An approach for particle breakage simulation based on the framework of discrete element
method was proposed in the current study. Convex polyhedron blocks were adopted as …

We present a version of the Discrete Element Method considering the particles as rigid
polyhedra. The Principle of Virtual Work is employed as basis for a multibody dynamics …

Ballast made up of discrete granular particles of rock is a principal component of railway
tracks. This review paper focuses on using Discrete Element Modelling (DEM) for modelling …