Rail track structural analysis using three-dimensional numerical models

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Manuela
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Rail track structural analysis using three-dimensional numerical models

Mensagem por Manuela » 05 Set 2016, 11:50

Autores: A. Paixão & E. Fortunato.

Numerical Methods in Geotechnical Engineering – Benz & Nordal (eds)
© 2010 Taylor & Francis Group, London, ISBN 978-0-415-59239-0.

ABSTRACT:
The current competitive growth of transport systems and the rising demands placed on railways
have promoted the improvement of systems that comprise the railway infrastructure. From this perspective, the
optimization of track design and the reduction of life-cycle costs assume greater relevance. Attaining a better
comprehension of the role of the elements that form the structure is essential to achieve such objectives.Within
this context, the use of numerical models is a valuable tool for better understanding of the track behaviour and
thus to optimize its design. The present study focuses on some aspects of three-dimensional track modelling.
Linear and nonlinear constitutive laws are used to reproduce the behaviour of granular material. Stress and
deformation results obtained on different layers, are presented and the suitability of different track solutions is
discussed. Finally a comparison of the results obtained with different software is also presented.
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