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L. de Abreu Correa¹, R. Cottereau¹, C. Voivret², S. Costa d'Aguiar², E. Bongini² and B. Faure²

¹Laboratoire MSSMat UMR 8579, Centrale Supelec, CNRS, Chatenay-Malabry, France
²Innovation and Research Department, SNCF, Paris, France

doi:10.4203/ccp.110.25

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L. de Abreu Correa, R. Cottereau, C. Voivret, S. Costa d'Aguiar, E. Bongini, B. Faure, "Wave Propagation in a Ballasted Railway Track: A Stochastic Heterogeneous Approach", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 25, 2016. doi:10.4203/ccp.110.25

Keywords: wave propagation, granular media, ballasted railway track, stochastic modeling, spectral element method.

Summary

The work, described in this paper, is an investigation of the dynamic behavior of a ballasted railway track modeled as a stochastic heterogeneous media. Three-dimensional simulations carried out using the spectral element method were used to generate the results. This leads to a comparison, in the frequency space, of different ratios of mechanical properties of soil and ballast together with homogeneous compared with heterogeneous models. The presence of dispersion in the homogeneous case and the influence of the heterogeneities are stressed. Additional apparent damping is induced in the free field in the heterogeneous case.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 110 PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 25 Wave Propagation in a Ballasted Railway Track: A Stochastic Heterogeneous Approach L. de Abreu Correa¹, R. Cottereau¹, C. Voivret², S. Costa d'Aguiar², E. Bongini² and B. Faure² ¹Laboratoire MSSMat UMR 8579, Centrale Supelec, CNRS, Chatenay-Malabry, France ²Innovation and Research Department, SNCF, Paris, France doi:10.4203/ccp.110.25 purchase the full-text of this paper Full Bibliographic Reference for this paper L. de Abreu Correa, R. Cottereau, C. Voivret, S. Costa d'Aguiar, E. Bongini, B. Faure, "Wave Propagation in a Ballasted Railway Track: A Stochastic Heterogeneous Approach", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 25, 2016. doi:10.4203/ccp.110.25 Keywords: wave propagation, granular media, ballasted railway track, stochastic modeling, spectral element method. Summary The work, described in this paper, is an investigation of the dynamic behavior of a ballasted railway track modeled as a stochastic heterogeneous media. Three-dimensional simulations carried out using the spectral element method were used to generate the results. This leads to a comparison, in the frequency space, of different ratios of mechanical properties of soil and ballast together with homogeneous compared with heterogeneous models. The presence of dispersion in the homogeneous case and the influence of the heterogeneities are stressed. Additional apparent damping is induced in the free field in the heterogeneous case. purchase the full-text of this paper (price £22) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £85 +P&P)
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