Numerical simulation of railway track supporting system using finite-infinite and thin layer elements under impulsive loads
Noorzaei, Jamaloddin, Moradipour, Parviz, Jaafar, Mohamed Saleh, Fong, Yong Chooi, & Thanoon, Waleed Abdul-Malik (2012) Numerical simulation of railway track supporting system using finite-infinite and thin layer elements under impulsive loads. Journal of Civil Engineering and Management, 18(2), pp. 245-252.
The present study deals with two dimensional, numerical simulation of railway track supporting system subjected to dynamic excitation force. Under plane strain condition, the coupled finite-infinite elements to represent the near and far field stress distribution and thin layer interface element was employed to model the interfacial behavior between sleepers and ballast. To account for the relative debonding, slipping and crushing that could take place in the contact area between the sleepers and ballast, modified Mohr-Coulomb criterion was adopted. Furthermore an attempt has been made to consider the elasto-plastic material non-linearity of the railway track supporting media by employing different constitutive models to represent steel, concrete and supporting materials. Based on the proposed physical and constitutive modeling a code has been developed for dynamic loads. The applicability of the developed F.E code has been demonstrated by analyzing a real railway supporting structure.
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|Item Type:||Journal Article|
|Additional Information:||This item was published when I was at Universiti Putra Malaysia (UPM) before joining QUT.|
|Keywords:||elasto-plastic, dynamic loading, finite-infinite elements, interface elements modeling, 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 2012 Taylor & Francis Group|
|Deposited On:||31 Mar 2015 03:25|
|Last Modified:||01 Apr 2015 04:21|
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