A two-dimensional ordinary state-based peridynamic model for surface fatigue crack propagation in railheads

Xiaochuan Ma; Li Wang; Jinhui Xu; Qingsong Feng; Linya Liu; Huapeng Chen

doi:10.1016/j.engfracmech.2022.108362

A two-dimensional ordinary state-based peridynamic model for surface fatigue crack propagation in railheads

Xiaochuan Ma^*, Li Wang, Jinhui Xu, Qingsong Feng, Linya Liu, Huapeng Chen

^*Corresponding author for this work

Railway Engineering

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

Based on ordinary state-based peridynamic theory, a 2D peridynamic model has been established to investigate fatigue crack propagation in railheads. The proposed model is verified in terms of rail deformation under a quasi-static load and the ductile material-related fatigue failure model. Good agreements have been achieved between a finite element model and the experimental results. With the proposed model, the effects of the initial crack angle, initial crack length and wheel-rail friction coefficient on crack propagation in railheads are studied. This research provides a new method for studying crack propagation in railheads.

Original language	English
Article number	108362
Number of pages	14
Journal	Engineering Fracture Mechanics
Volume	265
DOIs	https://doi.org/10.1016/j.engfracmech.2022.108362
Publication status	Published - 2022

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Crack propagation
Fatigue
Peridynamic model
Railway
Wheel-rail contact

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10.1016/j.engfracmech.2022.108362

1-s2.0-S0013794422001205-main (1)Final published version, 5.77 MB

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title = "A two-dimensional ordinary state-based peridynamic model for surface fatigue crack propagation in railheads",

abstract = "Based on ordinary state-based peridynamic theory, a 2D peridynamic model has been established to investigate fatigue crack propagation in railheads. The proposed model is verified in terms of rail deformation under a quasi-static load and the ductile material-related fatigue failure model. Good agreements have been achieved between a finite element model and the experimental results. With the proposed model, the effects of the initial crack angle, initial crack length and wheel-rail friction coefficient on crack propagation in railheads are studied. This research provides a new method for studying crack propagation in railheads.",

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AU - Ma, Xiaochuan

AU - Wang, Li

AU - Xu, Jinhui

AU - Feng, Qingsong

AU - Liu, Linya

AU - Chen, Huapeng

N1 - Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2022

Y1 - 2022

N2 - Based on ordinary state-based peridynamic theory, a 2D peridynamic model has been established to investigate fatigue crack propagation in railheads. The proposed model is verified in terms of rail deformation under a quasi-static load and the ductile material-related fatigue failure model. Good agreements have been achieved between a finite element model and the experimental results. With the proposed model, the effects of the initial crack angle, initial crack length and wheel-rail friction coefficient on crack propagation in railheads are studied. This research provides a new method for studying crack propagation in railheads.

AB - Based on ordinary state-based peridynamic theory, a 2D peridynamic model has been established to investigate fatigue crack propagation in railheads. The proposed model is verified in terms of rail deformation under a quasi-static load and the ductile material-related fatigue failure model. Good agreements have been achieved between a finite element model and the experimental results. With the proposed model, the effects of the initial crack angle, initial crack length and wheel-rail friction coefficient on crack propagation in railheads are studied. This research provides a new method for studying crack propagation in railheads.

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KW - Fatigue

KW - Peridynamic model

KW - Railway

KW - Wheel-rail contact

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A two-dimensional ordinary state-based peridynamic model for surface fatigue crack propagation in railheads

Abstract

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