Simple plastic deformation analysis of ballasted track under repeated moving-wheel loads by cumulative damage model

Ishikawa, Tatsuya; Miura, Seiichi; Sekine, Etsuo

doi:10.1016/j.trgeo.2014.06.006

Cited by 13 publications

(6 citation statements)

References 21 publications

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“…Therefore, it is inevitable that some structural damages, such as ballast hardening, fastener failure, and global structural damage, would occur in actual high-speed railway bridges and tracks. In view of this, the damage identification and evaluation for railway bridge and track have also attracted more attention with the rapid development of high-speed railway construction (Adasooriya, 2016;Ferdous and Manalo, 2014;Hu et al, 2018;Ishikawa et al, 2014;Rezaie et al, 2012;Sun et al, 2017;Zakeri and Rezvani, 2012;Zhai et al, 2014;Zhou et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Effect of random structural damage on vehicle–track–bridge coupled response

Xiao

2019

International Journal of Damage Mechanics

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With the rapid development of high-speed railway construction around the world, the structural damage problem of tracks and bridges has attracted more and more attention. In this paper, considering the random structural damages of tracks and bridges, an efficient computational procedure is developed based on the probability density evolution method to systematically investigate the random characteristics of the dynamic responses varying with the damages in vehicle–track–bridge time-dependent systems. Firstly, a vehicle–track–bridge dynamic model with random structural damage parameters is established, and the random motion equations are derived based on the generalized energy principle. Then, the probability density evolution equation for each random response is established and the random feature is investigated by the proposed computational procedure. Finally, the representative numerical examples are applied and some conclusions for the effects of the random structural damages on the dynamic responses of the vehicle–track–bridge systems are presented.

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Section: Introductionmentioning

confidence: 99%

Effect of random structural damage on vehicle–track–bridge coupled response

Xiao

2019

International Journal of Damage Mechanics

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“…When implementing a constitutive model, different authors initially recommend the realization of two-dimensional models to observe the sensitivity that the adoption of certain parameters and the interaction of the different elements of the model would imply. This two-dimensionality of the model can be seen in [57,61], who implement a hypoplastic model that requires an update and control of the tenso-deformational parameters in each calculation step, while [62][63][64][65][66] implement a constitutive equation in each "implicit-explicit" transition with a criterion of convergence of a certain requirement.…”

Section: Yesmentioning

confidence: 99%

State of the Art: Deterioration Models of Railway Ballasts and Subgrades. Recommendations and Applications

Cambronero¹

2020

GJES

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In recent years, rail transport has experienced a great expansion throughout the world, becoming an efficient and competitive transportation system for countries that have thousands of kilometers of tracks. In the coming decades, we contemplate that new and ambitious railway projects will be developed, and the technical difficulties in the interaction with the environment, through which the track aims to circulate and reach greater speeds, make these projects a real challenge for civil engineering. Such are the cases of the expansion of the High-Speed network in China [1] and the expected development of high-speed lines in the UnitedWith respect to high-speed networks, the demographic and economic growth of many of the countries that have a rail network with these characteristics with optimal exploitation conditions and study experience has forced the networks to reach higher speeds to meet the demand and/or economic objectives that are required of this transportation system. The increase in speed could generate an increase in the values of the loads that are transmitted to the railway platform, since the speed is proportional to the value of the loads. This proportion is related to the effect of the weight of the nonsuspense masses of the train, since if this weight does not change but the value of the speed increases, the dynamic effects that occur in the vehicle-track interaction cause this interaction to generate a dynamic overload that increases the value of the loads to be supported by the track. In terms of railway freight transport, the future commercial expansion of several countries can lead to trains having to increase their load and/or transport capacity, either by increasing the number of cars or the axle load that is transmitted to the railway platform [3], thus considering the adaptation of this

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“…To capture the effect of PSAR on permanent deformation, a parameter, ( R s ) ave , proposed by Ishikawa et al ( 15 , 19 ) is used. ( R s ) ave means the average ratio of axial strain between specimens with and without PSAR.…”

Section: Proposal and Application Of Modified Uiuc Modelmentioning

confidence: 99%

Applicability of Modified University of Illinois at Urbana–Champaign Model for Unbound Aggregate Material with Different Water Content

Lin

Ishikawa

Luo

2019

Transportation Research Record: Journal of the Transportation R

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This paper proposes a modified University of Illinois at Urbana-Champaign (UIUC) model to predict permanent deformation behavior of unbound aggregate materials. Most existing models relate permanent deformation to resilient properties, whereas the UIUC model treats shear strength as a critical factor in permanent deformation behavior. Three types of test, monotonic shearing test, cyclic axial loading test, and cyclic axial and shear loading test, were conducted by multi-ring shear apparatus on two kinds of parallel grading aggregate materials, natural crusher-run and recycled crusher-run obtained from demolished concrete structure. Test results demonstrate that shear strength is the core factor in permanent deformation behavior, compared with resilient properties, and principal stress axis rotation (PSAR) greatly increases the permanent deformation. By considering the effect of PSAR on permanent deformation, a new parameter, (R s) ave , is added to the conventional UIUC model to modify it. Regression analysis results verify that the modified UIUC model has good applicability for predicting permanent deformation of aggregates with different water contents and stress states, and with and without PSAR. The modified UIUC model builds a relation between test results with and without PSAR. A simple framework is also proposed for predicting permanent deformation in flexible pavement structures based on the modified UIUC model.

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Simple plastic deformation analysis of ballasted track under repeated moving-wheel loads by cumulative damage model

Cited by 13 publications

References 21 publications

Effect of random structural damage on vehicle–track–bridge coupled response

Effect of random structural damage on vehicle–track–bridge coupled response

State of the Art: Deterioration Models of Railway Ballasts and Subgrades. Recommendations and Applications

Applicability of Modified University of Illinois at Urbana–Champaign Model for Unbound Aggregate Material with Different Water Content

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