Discrete element modelling of track ballast capturing the true shape of ballast stones
Sign Up to like & getrecommendations! Published in 2021 at "Powder Technology"
DOI: 10.1016/j.powtec.2021.02.066
Abstract: Abstract Railway ballast affected by heavy cyclic loading degrades and spreads resulting in an uncomfortable transportation caused by undesirable vibrations. Restoring a well sorted track ballast can be expensive. This paper analyzes track ballast deformation… read more here.
Keywords: ballast stones; discrete element; ballast; track ballast ... See more keywords
Shape analysis of railway ballast stones: curvature-based calculation of particle angularity
Sign Up to like & getrecommendations! Published in 2020 at "Scientific Reports"
DOI: 10.1038/s41598-020-62827-w
Abstract: Particle shape analysis is conducted, to compare two types of railway ballast: Calcite and Kieselkalk. Focus lies on the characterisation of particle angularity using 3D scanner data. In the literature, angularity is often characterised using… read more here.
Keywords: ballast stones; shape analysis; particle; angularity ... See more keywords