The Effect of Rubber Pads on The Stress Distribution for Concrete Railway Sleepers

Krishnamoorthy, Renga Rao; Saleheen, Zobaer; Effendy, Aruan; Alisibramulisi, Anizahyati; Awaludin, Ali

doi:10.1088/1757-899x/431/11/112007

Cited by 7 publications

(3 citation statements)

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“…The selected dimensions are the most applicable to rail 54E1 (UIC54); these dimensions are shown in Figure 5. The moment of inertia of rail 54E1 (UIC54) equals 2338 cm 4 , while the modeled rail equals 2346 cm 4 . The moment of inertia of the X-axis of the modeled rail, the horizontal axis, is shown in Table 1, where y is the distance between the centroid axis of the part of the body to the bottom edge of the body, y T is the distance between the centroid axis of the body and the bottom edge of the body, I x is the moment of inertia of the modeled rail, and d is the distance between y and y T .…”

Section: Model Preparationmentioning

confidence: 99%

“…The superstructure contains rails, rail pads, a fastening system, and sleepers, while the substructure contains ballast, subballast, and subgrade layers [2,3]. There are optional elements used recently as vibration isolators, such as Under Sleeper Pads (USP) and Under Ballast Mats (UBM), to ensure the quality of track geometry for a long time [4][5][6][7]. Development in ballasted tracks can help to improve the track quality with low maintenance costs and long life of track elements to meet the needs of large traffic density and high speeds [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Numerical Analysis of Additional Stresses in Railway Track Elements Due to Subgrade Settlement Using FEM Simulation

et al. 2021

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The prediction of additional stresses in ballasted track due to subgrade deformation is the main objective of the present paper. In this context, a 2D finite element model of ballasted railway track was built using the ANSYS Workbench program. Based on this model, an investigation of stresses and deformation values of track elements was conducted in three cases with different contact types. It was found that the case introducing the status of a new track, which has frictional contacts between sleepers and ballast with bonded contacts between other elements, has lower stresses in most of the track elements. Moreover, this case was applied for studying the effect of the settlement on track elements. It was found that stresses increased with increasing the settlement value. The average percentages of increased stresses are 4.18%, 5.85%, and 7.21% in railhead, tie plate, and sleeper, respectively, due to a 1 mm increase in the settlement. Finally, a second-degree polynomial equation was derived to predict the additional stresses in each element due to track settlement. It is expected that this study would help to decrease the maintenance costs and extend the service life of the track elements by predicting the additional stresses in them.

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Section: Model Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Additional Stresses in Railway Track Elements Due to Subgrade Settlement Using FEM Simulation

et al. 2021

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“…The performance of elastomeric buffer embedded on the coil spring of an automobile suspension system was examined by Meran. 11 Krishnamoorthy et al 12 developed four separate models of the same load, sleeper, and rail but with different rubber pad thicknesses using the FE software ABAQUS to investigate the effect of the variation of rubber pad thickness in terms of the static stress distribution of the rail-sleeper. Spring supports are used at the bottom of the sleeper to represent the elastic stiffness of the ballast bed and subgrade.…”

Section: Introductionmentioning

confidence: 99%

Reliability analysis based on load spectrum: A structural improvement of Indian Railways three-piece freight bogie elastomeric pad

Shukla,

Thaplyal,

Gautam

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part F:

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Dynamic characteristics and reliability of elastomeric pads are dominant components in the design methodology to satisfy the performance parameters under dynamic operations. The fatigue life of rubber pads fitted with elastomeric pads mainly depends upon elastomers; natural rubber, chloroprene, nitrile butadiene, silicon compounds, etc., additives, accelerators, activators, fillers, anti-degradants, and manufacturing processes. The performance of the elastomeric pad is evaluated based on service operation, simulation, and laboratory testing. New and failed elastomeric (EM) pads have been examined in the Indian Rubber Manufacturer’s Research Association IRMRA laboratory for detailed failure analysis of existing EM pads. Further, chemical and physical properties are also evaluated in M&C (Metallurgical and Chemical) and Testing Directorate of Research Designs and Standards Organization (RDSO), labs respectively. The fatigue life of the EM pad is estimated based on the results extracted from the Finite Element (FE) analysis of the EM pad. An attempt is made to modify the design of the EM pad by considering the results of detailed field trials, lab testing, and FE analysis. The modified design satisfies the dynamic characteristic during FE (Structural and Thermal) analysis and lab testing.

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Influence of Charge Locations on Close-in Air-blast Response of Pre-tensioned Concrete U-girder

Anas

Alam

Umair

2021

Lecture Notes in Civil Engineering

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The Effect of Rubber Pads on The Stress Distribution for Concrete Railway Sleepers

Cited by 7 publications

References 0 publications

Numerical Analysis of Additional Stresses in Railway Track Elements Due to Subgrade Settlement Using FEM Simulation

Numerical Analysis of Additional Stresses in Railway Track Elements Due to Subgrade Settlement Using FEM Simulation

Reliability analysis based on load spectrum: A structural improvement of Indian Railways three-piece freight bogie elastomeric pad

Influence of Charge Locations on Close-in Air-blast Response of Pre-tensioned Concrete U-girder

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