The effects of several parameters on the erosive wear were studied using the discrete element method (DEM). The Finnie model was implemented using an open-source code. Regarding the time integration, the Gear algorithm was used, and to ensure the accuracy of the DEM results, a time-step sensitivity analysis was performed. The problem was modeled in two parts: first, the impact of a single particle on a surface was modeled, and then a more general model was prepared to examine the wear of surfaces under the flow of particles. The effects of the surface area, impact angle, speed, particle size, particle density, Young’s modulus, Poisson’s ratio, and restitution coefficient on the wear were studied numerically, and the results are discussed herein.

中文翻译：

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使用DEM研究影响侵蚀磨损的参数

使用离散元方法（DEM）研究了几个参数对侵蚀磨损的影响。Finnie模型是使用开源代码实现的。关于时间积分，使用了Gear算法，并且为了确保DEM结果的准确性，执行了时步灵敏度分析。该问题分为两部分进行建模：首先，对单个粒子对表面的影响进行建模，然后准备一个更通用的模型，以检查粒子流下的表面磨损。数值研究了表面积，冲击角，速度，粒度，颗粒密度，杨氏模量，泊松比和恢复系数对磨损的影响，并在此讨论了结果。