Modelling of Railway Sleeper Settlement under Cyclic Loading Using a Hysteretic Ballast Contact Model

↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Search: AMNE:(TEKNIK OCH TEKNOLOGIER Samhällsbyggnadsteknik Geoteknik) > (2020-2024) > Modelling of Railwa...

Details
MARC

Talebiahooie, ElaheLuleå tekniska universitet,Drift, underhåll och akustik (author)

Modelling of Railway Sleeper Settlement under Cyclic Loading Using a Hysteretic Ballast Contact Model

Article/chapterEnglish2021

Publisher, publication year, extent ...

2021-11-06
MDPI,2021
electronicrdacarrier

Numbers

LIBRIS-ID:oai:DiVA.org:ltu-87896
https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-87896URI
https://doi.org/10.3390/su132112247DOI

Supplementary language notes

Language:English
Summary in:English

Part of subdatabase

SwePubSwePub

Classification

Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

Notes

Validerad;2021;Nivå 2;2021-11-15 (beamah)
Ballasted tracks are common in the railway system as a means of providing the necessary support for the sleepers and the rails. To keep them operational, tamping and other maintenance actions are performed based on track geometry measurements. Ballast particle rearrangement, which is caused by train load, is one of the most important factors leading to track degradation. As a result, when planning maintenance, it is vital to predict the behaviour of the ballast under cyclic loading. Since ballast is a granular matter with a nonlinear and discontinuous mechanical behaviour, the discrete element method (DEM) was used in this paper to model the ballast particle rearrangement under cyclic loading. We studied the performance of linear and nonlinear models in simulating the settlement of the sleeper, the lateral deformation of the ballast shoulder and the porosity changes under the sleeper. The models were evaluated based on their ability to mimic the ballast degradation pattern in vertical and lateral direction. The linear contact model and the hysteretic contact model were used in the simulations, and the effect of the friction coefficient and different damping models on the simulations was assessed. An outcome of this study was that a nonlinear model was proposed in which both the linear and the hysteretic contact models are combined. The simulation of the sleeper settlement and the changes in the porosity under the sleeper improved in the proposed nonlinear model, while the computation time required for the proposed model decreased compared to that required for the linear model.

Subject headings and genre

TEKNIK OCH TEKNOLOGIER Samhällsbyggnadsteknik Geoteknik hsv//swe
ENGINEERING AND TECHNOLOGY Civil Engineering Geotechnical Engineering hsv//eng
TEKNIK OCH TEKNOLOGIER Samhällsbyggnadsteknik Infrastrukturteknik hsv//swe
ENGINEERING AND TECHNOLOGY Civil Engineering Infrastructure Engineering hsv//eng
ballasted track
linear contact model
hysteretic contact model
cyclic loading
DEM
Drift och underhållsteknik
Operation and Maintenance
Geoteknik
Soil Mechanics
Mining and Rock Engineering
Gruv- och berganläggningsteknik

Added entries (persons, corporate bodies, meetings, titles ...)

Thiery, FlorianLuleå tekniska universitet,Drift, underhåll och akustik(Swepub:ltu)flothi (author)
Meng, JingjingLuleå tekniska universitet,Geoteknologi(Swepub:ltu)jinmen (author)
Mattsson, HansLuleå tekniska universitet,Geoteknologi(Swepub:ltu)hmat (author)
Nordlund, Erling,1956-Luleå tekniska universitet,Geoteknologi(Swepub:ltu)erlnor (author)
Rantatalo, MattiLuleå tekniska universitet,Drift, underhåll och akustik(Swepub:ltu)matran (author)
Luleå tekniska universitetDrift, underhåll och akustik (creator_code:org_t)

Related titles

In:Sustainability: MDPI13:212071-1050

Internet link

Find in a library

Sustainability (Search for host publication in LIBRIS)

To the university's database

Find more in SwePub

By the author/editor: Talebiahooie, El ...; Thiery, Florian; Meng, Jingjing; Mattsson, Hans; Nordlund, Erling ...; Rantatalo, Matti

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Civil Engineerin ...; and Geotechnical Eng ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Civil Engineerin ...; and Infrastructure E ...

Articles in the publication: Sustainability

By the university: Luleå University of Technology

Search outside SwePub

Extend your search to:: Google; Google Book Search; Google Scholar

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

LIBRIS.kb.se