%0 Conference Proceedings
%T Behaviour of a portion of railway track under maintenance operation
%+ Laboratoire de Mécanique et Génie Civil (LMGC)
%+ Physics of Railway Systems, Innovation and Research Departement of SNCF
%+ Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] (LaMCoS)
%+ Modélisation Mathématique en Mécanique (M3)
%A Phuong Hoang, Thi Minh
%A Saussine, Gilles
%A Dureisseix, David
%A Alart, Pierre
%Z 7 pages
%< avec comité de lecture
%B 9th World Congress on Railway Research - WCRR2011
%C Lille, France
%P 7 p. on CD-ROM
%8 2011
%D 2011
%K Railway ballast
%K Tamping process
%K Discrete Element Method (DEM)
%K Non-Smooth Contact Dynamics (NSCD)
%K Domain Decomposition Method
%K Parallel Computation
%Z Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph]
%Z Physics [physics]/Mechanics [physics]/Structural mechanics [physics.class-ph]Conference papers
%X The track deterioration rate is strongly influenced by the ballast behaviour under traffic. In order to restore the initial track geometry, different maintenance processes are performed, like tamping, dynamic stabilisation. A better understanding of the ballast behaviour under these operations on a portion of railway track is a key to optimize the process, to limit degradation and to propose some concept for a better homogeneous compaction. In this work, we focus on the study of tamping process over several sleepers by the numerical simulation using the Non-Smooth Contact Dynamics (NSCD) of three-dimensional Discrete Element Method (DEM) simulations improved by a Domain Decomposition Method and Parallel Computation.
%G English
%L hal-00934949
%U https://hal.science/hal-00934949
%~ CNRS
%~ INSA-LYON
%~ LAMCOS
%~ LMGC
%~ MIPS
%~ UNIV-MONTPELLIER
%~ INSA-GROUPE
%~ UDL
%~ UM-2015-2021