Wave propagation in a stochastic media: dispersion curves for a ballasted railway track - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2017

Wave propagation in a stochastic media: dispersion curves for a ballasted railway track

Charles Voivret
  • Fonction : Auteur
  • PersonId : 1037627
Sofia Costa d'Aguiar
  • Fonction : Auteur
  • PersonId : 927319
Estelle Bongini
  • Fonction : Auteur
  • PersonId : 939308
Baldrik Faure
  • Fonction : Auteur
  • PersonId : 1030421

Résumé

This paper discusses the dynamical behavior of a randomly-fluctuating heterogeneous continuum model of the ballast. The Young’s modulus is modeled as a random field parameterized by its average, its variance and a correlation model. A numerical model of the ballast and the surrounding soil is then constructed based on an explicit spectral element solver. This model allows to describe numerically the wave field generated, as well as to construct dispersion relation for the ballast-soil model. The influence of heterogeneity is discussed by comparison with a similar homogeneous model.
Fichier principal
Vignette du fichier
acte_CSMA2015_utf8.pdf (1.12 Mo) Télécharger le fichier
Format : typeAnnex_abstract
Loading...

Dates et versions

hal-01899275 , version 1 (19-10-2018)

Identifiants

  • HAL Id : hal-01899275 , version 1

Citer

Lucio de Abreu Correa, Régis Cottereau, Charles Voivret, Sofia Costa d'Aguiar, Estelle Bongini, et al.. Wave propagation in a stochastic media: dispersion curves for a ballasted railway track. 13e colloque national en calcul des structures, Université Paris-Saclay, May 2017, Giens, Var, France. ⟨hal-01899275⟩
65 Consultations
81 Téléchargements

Partager

Gmail Facebook X LinkedIn More