Numerical modeling of railway track supporting system using finite–infinite and thin layer elements

Noorzaei, J., Thanoon, W.A.M., Yeat, W.F., Moradipour, P., & Jaafar, M.S. (2009) Numerical modeling of railway track supporting system using finite–infinite and thin layer elements. International Journal of Engineering (IJE), 22(2), pp. 131-144.

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Abstract

The present contribution deals with the numerical modelling of railway track-supporting systems-using coupled finite-infinite elements-to represent the near and distant field stress distribution, and also employing a thin layer interface element to account for the interfacial behaviour between sleepers and ballast. To simulate the relative debonding, slipping and crushing at the contact area between sleepers and ballast, a modified Mohr-Coulomb criterion was adopted. Further more an attempt was made to consider the elasto plastic materials’ non-linearity of the railway track supporting media by employing different constitutive models to represent steel, concrete and other supporting materials. It is seen that during an incremental-iterative mode of load application, the yielding initially started from the edge of the sleepers and then flowed vertically downwards and spread towards the centre of the railway supporting system.

Impact and interest:

2 citations in Scopus
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ID Code: 83224
Item Type: Journal Article
Refereed: Yes
Additional Information: This item was published when I was in another institution.
Additional URLs:
Keywords: Thin Layer Element, Finite Element, Infinite Element, Railway Track Supporting Media
ISSN: 1025-2495
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2009 International Journal of Engineering
Deposited On: 09 Apr 2015 00:23
Last Modified: 13 Apr 2015 02:43

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