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 …

Railway ballast performance is dictated by a complex mix of mechanical properties. These
effect its performance at the particle level for example in terms of particle degradation, but …

Strength and deformation behaviors of rockfill materials, key factors for determining the
stability of dams, pertain strongly to the grain crushing characteristics. In this study, single …

Highlights•A numerical method based on DEM and PRM is used to simulate rice grain
breakage.•Mass-specific threshold dissipation energy judging effective collision is …

In this study, a new calibration procedure was proposed to calibrate the micro-parameters
for the flat-joint model. Both uniaxial compression and Brazilian test simulations were …

Granular breakage is a common phenomenon among rockfill dams, mineral engineering,
and geological phenomenon. In this work, we perform one-dimensional compression tests …

The present paper deals with the experimental investigation of interlocking effect of crushed
stone ballast material, assessing it as the relationship with the residual and dynamic …

This paper presents a quantitative evaluation of the effect of end friction on the dynamic
mechanical response and damage evolution of concrete based on the coupled Discrete …

The sleeper-ballast interface of railway tracks directly is associated with lateral resistance
which plays an important role in the mechanical behavior of ballasted tracks. In a real-case …

Tamping is an effective maintenance measure for ballasted track, but it can also cause
ballast breakage and sleeper abrasion. To balance the advantages and disadvantages of …