Elasto-plastic stress analysis of an insulated rail joint (IRJ) with a loading below shakedown limit
Mandal, Nirmal, Dhanasekar, Manicka, & Boyd, Paul (2009) Elasto-plastic stress analysis of an insulated rail joint (IRJ) with a loading below shakedown limit. In Bracciali, Andrea (Ed.) Proceedings of the 8th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, AB Editore 2009 on behalf of the CM2009 Organizing Committee, Palazzo degli Affari, Florence, pp. 773-781.
A finite element numerical simulation is carried out to examine stress distributions on railhead in the vicinity of the endpost of a insulated rail joint. The contact patch and pressure distribution are considered using modified Hertzian formulation. A combined elasto-plastic material modelling available in Abaqus is employed in the simulation. A dynamic load factor of 1.21 is considered in modelling for the wheel load based on a previous study as part of this on going research. Shakedown theorem is employed in this study. A peak pressure load which is above the shakedown limit is determined as input load. As a result, a progressive damage in the railhead has been captured as depicted in the equivalent plastic strain plot.
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|Item Type:||Conference Paper|
|Keywords:||Rail Joints , Railhead Stresses, Finite Element Modelling, Wheel Loads, Shakedown|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Structural Engineering (090506)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Urban Development
|Copyright Owner:||Copyright AB Editore 2009 on behalf of the CM2009 Organizing Committee.|
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|Deposited On:||06 Jul 2011 01:01|
|Last Modified:||12 Jun 2013 14:02|
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