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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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.

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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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