Numerical simulation of railway track supporting system using finite-infinite and thin layer elements under impulsive loads
Data(s) |
30/03/2012
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Resumo |
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. |
Identificador | |
Publicador |
Taylor & Francis Group |
Relação |
DOI:10.3846/13923730.2012.671286 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. |
Direitos |
Copyright 2012 Taylor & Francis Group |
Fonte |
School of Civil Engineering & Built Environment; Science & Engineering Faculty |
Palavras-Chave | #090506 Structural Engineering #elasto-plastic #dynamic loading #finite-infinite elements #interface elements modeling #railway #track supporting media |
Tipo |
Journal Article |