A new abrasive wear model for railway ballast

De Bono, John; Li, Huiqi; McDowell, Glenn

Abstract

A new method to model the abrasion of granular particles using the discrete element method is demonstrated in this paper. This new, simple method is based on a classical theory of abrasive wear, relating the volume of solid lost to the frictional work at particle contacts. The modelling technique is demonstrated in simulations of railway ballast using realistically-shaped particles, which are compared to experimental data. The new abrasion model correctly introduces stress-dependent behaviour at small strains into the simulations, which is essential for any realistic discrete element model.

Citation

De Bono, J., Li, H., & McDowell, G. (2020). A new abrasive wear model for railway ballast. Soils and Foundations, 60(3), 714-721. https://doi.org/10.1016/j.sandf.2020.05.001

• Journal Article Type: Article
• Acceptance Date: Apr 7, 2020
• Online Publication Date: May 23, 2020
• Publication Date: 2020-06
• Deposit Date: Apr 20, 2020
• Publicly Available Date: Jun 1, 2020
• Journal: Soils and Foundations
• Print ISSN: 0038-0806
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 60
• Issue: 3
• Pages: 714-721
• DOI: https://doi.org/10.1016/j.sandf.2020.05.001
• Public URL: https://nottingham-repository.worktribe.com/output/4316689
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S0038080620336234