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.
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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|Item Type:||Journal Article|
|Additional Information:||This item was published when I was in another institution.|
|Keywords:||Thin Layer Element, Finite Element, Infinite Element, Railway Track Supporting Media|
|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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