A new abrasive wear model for railway ballast

被引：22

作者：

de Bono, John ^{[1
]}

Li, Huiqi ^{[1
]}

McDowell, Glenn ^{[1
]}

机构：

[1] Univ Nottingham, Nottingham, England

来源：

SOILS AND FOUNDATIONS | 2020年 / 60卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

Discrete element method; DEM; Abrasion; Wear; Ballast; Damage; Degradation; Triaxial; CONFINING PRESSURE; DEGRADATION; TESTS;

D O I：

10.1016/j.sandf.2020.05.001

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

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. (C) 2020 Production and hosting by Elsevier B.V. on behalf of The Japanese Geotechnical Society.

引用

页码：714 / 721

页数：8

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