| 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
in Cooperation with on an Cooperation-Score of 37%
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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article
Damage and failure modes of railway prestressed concrete sleepers with holes/web openings subject to impact loading conditions
Abstract
Prestressed concrete sleepers are essential to the structural integrity of railway track structures, redistributing wheel loads from the rails to underlying ballast bed while securing rail gauges for safe train traffics. In practice, drilled holes or web openings are usually generated ad hoc in sleepers to enable signalling equipment and cables at a construction site. These holes and web openings could however affect the structural integrity of sleepers, especially when they are exposed to impact loading. In fact, statistically, 15 to 25% of dynamic loading conditions are of transience and high-intensity by the nature of wheel-rail interaction over irregularities. This study is thus the first to investigate the impact behaviours of railway sleepers with hole and web openings, which is critical to railway safety and reliability. In this study, three-dimensional finite element modelling using ABAQUS Explicit was used to design and analyse the behaviour of prestressed concrete sleepers with various types of holes and web openings upon impact loading. Two different modelling techniques including concrete damaged plasticity model and brittle cracking model are also exercised to aid in this study. The results obtained show that the brittle cracking model provides better damage results as it can illustrate crack propagation very well until reaching the failure mode under impact loading. The findings illustrate a pathway to use brittle cracking model instead of concrete damaged plasticity model for dynamic impact analysis. Moreover, the outcome of this study will provide a better insight into the influences of holes and web openings on sleepers’ failure modes under impact loading so that appropriate guidance can be proposed to rail engineers in order to generate holes and web openings ad hoc in prestressed concrete sleepers without compromising their structural performance.