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.

中文翻译：

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一种新的铁路道碴磨粒磨损模型

摘要 本文展示了一种使用离散元方法模拟颗粒磨损的新方法。这种新的、简单的方法基于经典的磨料磨损理论，将损失的固体体积与颗粒接触处的摩擦功联系起来。该建模技术在使用真实形状粒子的铁路道碴模拟中得到证明，并将其与实验数据进行比较。新的磨损模型正确地将小应变下的应力相关行为引入到模拟中，这对于任何现实的离散单元模型都是必不可少的。