3D Finite Element Model as a Tool for Analyzing the Structural Behavior of a Railway Track

Kalliainen, Antti; Kolisoja, Pauli; Nurmikolu, Antti

doi:10.1016/j.proeng.2016.06.133

Cited by 24 publications

(23 citation statements)

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“…From the literature, ballast layer commonly was modelled using linear elastic material models as it requires lower computational time compared to non-linear elastic material models. Recent studies like [96][97][98] showed the importance of modelling ballast layer as a non-linear material and the authors concluded with good results of estimating the whole ballast layer behaviour. There are two methods to simulate the non-linearity of ballast.…”

Section: Ballast Materials Modelmentioning

confidence: 99%

Geomechanical Modelling of Railroad Ballast: A Review

Alabbasi

Hussein

2019

Arch Computat Methods Eng

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Traditional ballasted tracks have been used intensively around the world with ballast as the main material for tracks. Ballast has a significant contribution to the track alignment, stability and sustainability. After service, ballast deforms and degrades. Periodic ballast maintenance is needed which is a time and cost expensive activity. Understanding the mechanical behaviour of railroad ballast leads to better design and efficient maintenance. From the literature, there are two main approaches used to understand the mechanical behaviour of railroad ballast; large scale experimental and modelling. This paper aims to review the state of the art of literature on the modelling approaches used to understand ballast mechanical behaviour. It discusses the key findings from each modelling approach in understanding ballast mechanical behavior. It presents the main concerns and limitations of each modelling approach from different perspectives related to ballast modelling. It summarizes the limitations, gaps and gaps’ developments of the researches used to understand ballast behaviour via modelling approach.

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Section: Ballast Materials Modelmentioning

confidence: 99%

Geomechanical Modelling of Railroad Ballast: A Review

Alabbasi

Hussein

2019

Arch Computat Methods Eng

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“…Based on references [5,7,9,10],under the mixed traffic area, the vehicle crosses the embedded track structure, the vehicle load is set separately on the outside of the rail and the inside of the rail. The loading area of the wheel is 0.6m×0.2m [11].…”

Section: Load and Working Conditionsmentioning

confidence: 99%

“…As for the embedded track structure without fastening system, the selection of elastic modulus of filling material is crucial for the design of track structure, because the rail is mainly fixed by the filling material [5]. Therefore, the main purpose of this paper is to study the elastic modulus of the filling material.…”

Section: Introductionmentioning

confidence: 99%

“…Hence, we put forward an optimum range of elastic modulus to improving the stability of embedded rail track. The embedded track is symmetrical along the center line [8], so the track is divided along the longitudinal symmetry center plane, and the 1/2 track structure is taken as the calculation model [5]. The track structure is shown in figure 1.…”

Section: Introductionmentioning

confidence: 99%

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Numerical analysis of the embedded track structure under mixed traffic load

2019

MATEC Web Conf.

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Taking into account that the embedded track structure not only bears the load from tram, but also suffers from road traffic, this paper aims to establish the finite element analysis model of embedded track structure in the mixed traffic area with ABAQUS software, calculates the deformation and stress of asphalt surface course and filling material. Also, the paper puts forward the way to improve the structural stability of embedded track.

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“…It is limited to two-dimensional problems and cannot be applied directly to dynamic problems [29]. A 2D full-track model using Hardening-Soil (HS) model combined with hypo-elastic material for ballast was introduced in Indraratna et al [30] and extended to three-dimensional (3D) by Kalliainen et al [31].…”

Section: Introductionmentioning

confidence: 99%

Settlement analysis using a generic ballasted track simulation package

Shih

Grossoni

Bezin

2019

Transportation Geotechnics

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3D Finite Element Model as a Tool for Analyzing the Structural Behavior of a Railway Track

Cited by 24 publications

References 1 publication

Geomechanical Modelling of Railroad Ballast: A Review

Geomechanical Modelling of Railroad Ballast: A Review

Numerical analysis of the embedded track structure under mixed traffic load

Settlement analysis using a generic ballasted track simulation package

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