Static behaviour of glass fibre reinforced novel composite sleepers for mainline railway track

Ferdous, Wahid; Manalo, Allan; Alajarmeh, Omar; Mohammed, Ali A.; Salih, Choman; Yu, Peng; Khotbehsara, Mojdeh Mehrinejad; Schubel, Peter

doi:10.1016/j.engstruct.2020.111627

Cited by 66 publications

(31 citation statements)

References 28 publications

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“…The maximum load and displacement (Figure 5b) observed from calibrated equipment were 325 kN at 11.1 mm for specimen-1 and 405 kN at 13 mm for specimen-2, respectively, provided an average MOR of 94 MPa according to Equation (3) where M is the average ultimate moment and c is the distance of outer fibre from the neutral axis. The MOR obtained for this sleeper is significantly higher than the MOR of softwood timber (22-34 MPa) and hardwood timber sleepers (55 MPa) [4].…”

Section: Modulus Of Rupture (Mor)contrasting

confidence: 59%

“…The increase of sectional modulus and moment capacity with the increase of tube thickness from 1 mm to 10 mm are summarised in Table 3. The moment capacity and modulus of elasticity (MOE) of the composite sleepers can be as low as 25 kN-m [4] and 4 GPa [14], respectively. Based on the compressive failure at the top side of GFRP, Table 3 suggested that a thin layer of GFRP tube (even 1 mm) can meet the requirements of moment capacity, however, a minimum thickness of 4 mm is required to meet the target MOE of 4 GPa.…”

Section: Development Of the Sleeper Concept And Performance Evaluation 21 Selection Of Suitable Polymermentioning

confidence: 99%

“…Moreover, this type of sleeper can be manufactured within the cost of hardwood timber due to the use of high volume of waste materials. However, they are suffering from low pull-out resistance, low stiffness, high thermal expansion causing plastic deformation and subsequently loosening of fasteners, low fire resistance and poor dimensional stability at service temperatures [4]. On the other hand, the Fibrereinforced Foamed Urethane (FFU) sleeper has very similar mechanical properties but superior durability than traditional timber sleepers [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the key scientific research challenge is how to develop an alternative material sleeper that will be rectangular in shape and perform satisfactorily within the target price range. To achieve this goal, the authors recently proposed three new concepts of internally reinforced rectangular shaped composite sleepers [4]. However, the manufacturing process of internally reinforced sleepers is complex and time consuming.…”

Section: Introductionmentioning

confidence: 99%

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Behaviour of Polymer Filled Composites for Novel Polymer Railway Sleepers

Ferdous

Salih

et al. 2021

Polymers

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A novel concept of polymer railway sleeper is proposed in this study that has the potential to meet static performance requirements within the cost of hardwood timber. The existing challenges of composite sleepers, such as low performance or high cost, can be overcome using this innovative concept. Such a proclamation is proven through limit state design criteria and a series of experimentations. Results show that polyurethane foam as an infill material can provide sufficient strength and stiffness properties to the sleeper, but the inadequate screw holding capacity could be a problem. This limitation, however, can be overcome using a particulate filled resin system. The findings of this study will help the railway industry to develop a timber replacement sleeper.

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Section: Modulus Of Rupture (Mor)contrasting

confidence: 59%

Section: Development Of the Sleeper Concept And Performance Evaluation 21 Selection Of Suitable Polymermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Behaviour of Polymer Filled Composites for Novel Polymer Railway Sleepers

Ferdous

Salih

et al. 2021

Polymers

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“…The distance between the center lines of railways is 5 m, the distance between two rails of a railway is 1.4 m, the sleeper spacing is 0.6 m and the width at the bottom of the track-bed is 4 m. According to the geological condition of the land, the soil was simplified into three layers including an artificial fill layer with a thickness of 5 m, a cohesive soil layer with a thickness of 25 m, and a mucky soil layer with a thickness of 15 m. In addition, as shown in Figure 3, several viscoelastic solid units with a thickness of 1 m were set as an artificial boundary at the bottom of three layers of soil and around the soil in the model. The material parameters of rail, sleeper, track-bed, and three layers of soil are shown in Table 1 [19][20][21].…”

Section: An Finite Element Model and Its Verification Of Reasonabilitymentioning

confidence: 99%

Predict the Influence of Environmental Vibration from High-Speed Railway on Over-Track Buildings

Xie

Guo

2021

Sustainability

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The vibration caused by railways is an environmental constraint in the development of over-track buildings. To study the influence of environmental vibration from the high-speed railway on over-track buildings, a finite element model including track, soil, and buildings was set up. Based on the vertical vibration acceleration sampled on the rail, the equivalent line load acting on rails vertically was obtained by a simplified model. On the basis of verifying the simulation model by measurement results, the vertical vibration induced by high-speed railways in over-track buildings was studied quantitatively. Through introducing correction terms relating to the thickness and height of the over-track platform, the story number, and the structure of the over-track building, an existing model released by the railway industry of China was improved. Compared with the existing model only being suitable for predicting vertical vibration of the first floor, the improved model can predict vertical vibration of different floors.

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A comprehensive review on polymer composites in railway applications

et al. 2022

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The main challenging things in railway vehicles are to reduce the consumption of energy for transportation and to decrease the emission of harmful gasses by limiting the consumption of fuel sources. These drawbacks can be overcome by lightweight structures designed for the vehicle bodies and frameworks. The composite materials with fiber reinforcements are the preferred choice for manufacturing lightweight structures to reduce the overall weight of the rail vehicle. The fiber reinforced polymer (FRP) materials possess light‐weightiness, high strength, high stiffness value and are more durable in nature. The researchers are continuously putting their efforts into new innovations in concern towards the replacement of existing conventional materials by FRP composites in railway applications. This review focuses on the overview of FRP composites, the role of composites in past rail vehicles, the rail vehicle component selection and methodology and FRP composites used for various railway components manufacturing with their challenges. Also, this review included the data of FRP composites used in various countries for different railway components applications. Hence, this review is beneficial for the upcoming researchers as a foundation literature to work on railway vehicle applications using variety of FRP materials. Moreover, the challenges are quoted in this review through the comprehensive analysis of literature and hence it provides the information in the form of research gap, so that it would be helpful for the researchers to overcome all the challenges in their upcoming research works.

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Static behaviour of glass fibre reinforced novel composite sleepers for mainline railway track

Cited by 66 publications

References 28 publications

Behaviour of Polymer Filled Composites for Novel Polymer Railway Sleepers

Behaviour of Polymer Filled Composites for Novel Polymer Railway Sleepers

Predict the Influence of Environmental Vibration from High-Speed Railway on Over-Track Buildings

A comprehensive review on polymer composites in railway applications

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