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J.-P. Massat¹, E. Balmes² and J.-P. Bianchi³

¹Engineering Department, SNCF, Saint Denis, France
²Ecole Nationale Supérieure des Arts et Métiers, Paris, France
³SDTools, Paris, France

doi:10.4203/ccp.110.110

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J.-P. Massat, E. Balmes, J.-P. Bianchi, "The Use of Finite Element Models to Study the Fatigue of Overhead Contact Wire", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 110, 2016. doi:10.4203/ccp.110.110

Keywords: catenary, contact wire, fatigue, wear, modelling.

Summary

Fatigue cracks can induce fracture of the catenary contact wire and thus significant costs for the operator. Nowadays the wear criterion to replace the contact wire leads to a lifespan of over fifty years, and the catenary can be subject to a very high number of cycles so that the fatigue life must be taken into account. A full process to compute the multiaxial transient stress field in the contact wire has been developed. A fatigue criticality indicator to assess the risk of crack initiation was introduced. This elaborate indicator is used to validate a simplified fatigue indicator based on the uniaxial Euler-Bernoulli beam stresses that are much faster to compute. This indicator is then used to assess parameters influencing the risk of fatigue in the case of junction claws.

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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 110 The Use of Finite Element Models to Study the Fatigue of Overhead Contact Wire J.-P. Massat¹, E. Balmes² and J.-P. Bianchi³ ¹Engineering Department, SNCF, Saint Denis, France ²Ecole Nationale Supérieure des Arts et Métiers, Paris, France ³SDTools, Paris, France doi:10.4203/ccp.110.110 purchase the full-text of this paper Full Bibliographic Reference for this paper J.-P. Massat, E. Balmes, J.-P. Bianchi, "The Use of Finite Element Models to Study the Fatigue of Overhead Contact Wire", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 110, 2016. doi:10.4203/ccp.110.110 Keywords: catenary, contact wire, fatigue, wear, modelling. Summary Fatigue cracks can induce fracture of the catenary contact wire and thus significant costs for the operator. Nowadays the wear criterion to replace the contact wire leads to a lifespan of over fifty years, and the catenary can be subject to a very high number of cycles so that the fatigue life must be taken into account. A full process to compute the multiaxial transient stress field in the contact wire has been developed. A fatigue criticality indicator to assess the risk of crack initiation was introduced. This elaborate indicator is used to validate a simplified fatigue indicator based on the uniaxial Euler-Bernoulli beam stresses that are much faster to compute. This indicator is then used to assess parameters influencing the risk of fatigue in the case of junction claws. 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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