| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ngamkhanong, Chayut
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Topics
Publications (12/12 displayed)
- 2024Effect of Graphene Quantum Dots (GQDs) on the Mechanical, Dynamic, and Durability Properties of Concretecitations
- 2021Recycled aggregates concrete compressive strength prediction using Artificial Neural Networks (ANNS)citations
- 2020Experimental and numerical investigations into dynamic modal parameters of fiber-reinforced foamed urethane composite beams in railway switches and crossingscitations
- 2020On Hogging Bending Test Specifications of Railway Composite Sleepers and Bearerscitations
- 2019Life cycle and sustainability assessment of under sleeper pads for railway vibration suppression
- 2019Nonlinear finite element analysis for structural capacity of railway prestressed concrete sleepers with rail seat abrasioncitations
- 2018Damage and failure modes of railway prestressed concrete sleepers with holes/web openings subject to impact loading conditionscitations
- 2018Dynamic capacity reduction of railway prestressed concrete sleepers due to surface abrasions considering the effects of strain rate and prestressing lossescitations
- 2018Condition monitoring of overhead line equipment (OHLE) structures using ground-bourne vibrations from train passagescitations
- 2017Impact Capacity Reduction in Railway Prestressed Concrete Sleepers with Surface Abrasionscitations
- 2017Influences of surface abrasions on dynamic behaviours of railway concrete sleepers
- 2017Influence of surface abrasion on creep and shrinkage of railway prestressed concrete sleeperscitations
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document
Influences of surface abrasions on dynamic behaviours of railway concrete sleepers
Abstract
By nature, railway infrastructure is nonlinear, evidenced by its behaviors, geometry and alignment, wheel-rail contact and operational parameters such as tractive efforts. Based on our critical review, there exists no previous work that considers the degradation of railway concrete sleepers over time. In fact, the ballast angularity causes differential abrasions on the soffit or bottom surface of sleepers (especially at railseat zone). Furthermore, in sharp curves and rapid gradient change, longitudinal and lateral dynamics of rails increase the likelihood of railseat abrasions in concrete sleepers due to the unbalanced loading conditions. This paper presents a nonlinear finite element model of a standard-gauge concrete sleeper in a track system, taking into account the tensionless nature of ballast support. The finite element model was calibrated using static and dynamic responses in the past. In this paper, the influences of surface abrasions, including surface abrasion and soffit abrasion, on the dynamic behaviours of sleepers are firstly highlighted. The outcome of this study will improve the rail maintenance and inspection criteria in order to establish appropriate and sensible remote track condition monitoring network in practice.