Jean-François Ferellec
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View article: Long-term Monitoring of a Geogrid Installed Beneath a Subballast Layer in Operating Conditions
Long-term Monitoring of a Geogrid Installed Beneath a Subballast Layer in Operating Conditions Open
International audience
View article: Ballasted Track Lateral Resistance Estimation byDiscrete Element Method Simulations
Ballasted Track Lateral Resistance Estimation byDiscrete Element Method Simulations Open
In this work, discrete elements methods (DEM) were used to simulate ballasted track lateral resistance problems by representing a granular material such as ballast as an assembly of rigid grains interacting through contact laws that contai…
View article: Modelling of ballast gluing: Application to tracklateral resistance
Modelling of ballast gluing: Application to tracklateral resistance Open
Ballast gluing to improve lateral resistance of tracks is analysed through the use of a numerical discrete element method including a cohesive contact model of CZM type.The results of the simulations are consistent with laboratory tests.Di…
View article: Development of a Numerical Framework to Guide the Maintenance and Reuse of Ballast in Railroad Tracks
Development of a Numerical Framework to Guide the Maintenance and Reuse of Ballast in Railroad Tracks Open
View article: Cyclic loading test on geogrid stabilised model trackbeds
Cyclic loading test on geogrid stabilised model trackbeds Open
International audience
View article: Amélioration des plateformes ferroviaires par géogrilles - essais en voie et instrumentation
Amélioration des plateformes ferroviaires par géogrilles - essais en voie et instrumentation Open
International audience
View article: Modelling realistic ballast shape to study the lateral pull behaviour using GPU computing
Modelling realistic ballast shape to study the lateral pull behaviour using GPU computing Open
The use of the Discrete Element Method to model engineering structures implementing granular materials has proven to be an efficient method to response under various behaviour conditions. However, the computational cost of the simulations …
View article: Effect of Particle Shape on Repose Angle Based on Hopper Flow Test and Discrete Element Method
Effect of Particle Shape on Repose Angle Based on Hopper Flow Test and Discrete Element Method Open
The repose angle of granular material is an essential parameter to understand the microbehavior of the granular material and, then, to relate it with the macrobehavior. In this study, a self‐design large‐scale hopper flow test apparatus ha…
View article: Analysis of compaction of railway ballast by different maintenance methods using DEM
Analysis of compaction of railway ballast by different maintenance methods using DEM Open
Railway traffic continuously increasing, ballasted tracks need more efficient maintenance processes. Lines with long welded rails which are prone to buckling during heat waves require stabilisation before being fully operational. Stabilisa…
View article: Non-smooth contact dynamic approach for railway engineering: investigation of ballast behaviour under stabilisation process
Non-smooth contact dynamic approach for railway engineering: investigation of ballast behaviour under stabilisation process Open
Railway maintenance procedures include the stabilisation of ballasted tracks. The procedure of dynamic stabilisation which consists in vibrating laterally the rail while applying a vertical load is analysed using a discrete element code ba…