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

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

Ma, Xiaochuan (East China Jiaotong University)
Wang, L. (TU Delft Railway Engineering)
Xu, Jinhui (East China Jiaotong University)
Feng, Qingsong (East China Jiaotong University)
Liu, Linya (East China Jiaotong University)
Chen, Huapeng (East China Jiaotong University)

2022

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.

Crack propagation
Fatigue
Peridynamic model
Railway
Wheel-rail contact

http://resolver.tudelft.nl/uuid:2a20368f-c8a6-4839-8cd1-0b87a7ce6c65

https://doi.org/10.1016/j.engfracmech.2022.108362

2022-08-28

0013-7944

Engineering Fracture Mechanics, 265

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.

Institutional Repository

journal article

© 2022 Xiaochuan Ma, L. Wang, Jinhui Xu, Qingsong Feng, Linya Liu, Huapeng Chen