Modeling Wear of Multimaterial Composite Surfaces

Modeling Wear of Multimaterial Composite Surfaces
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多材料复合表面的磨损建模

DOI:
10.1115/1.4032823
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发表时间:
2016
期刊:
Journal of Tribology
影响因子:
--
通讯作者:
Krick, Brandon A.
Krick, Brandon A.
中科院分区:
--
文献类型:
--
作者:
Sidebottom, Mark A.;Feppon, Florian;Vermaak, Natasha;Krick, Brandon A.

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参考文献

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迭代数值磨损模型提供了有价值的洞察不断变化的材料表面下磨料磨损。本文提出了一种预测摩擦学系统中摩擦元件磨损的整体数值方法。为了捕捉多材料表面的磨损行为,有限差分模型的发展。该模型确定压力和高度损失沿着复合材料表面,因为它对磨料兼容的反表面滑动。使用Archard的磨损定律,相应的节点高度损失,发现使用适当的材料磨损率,施加的压力,和增量滑动距离。重复该过程,直到表面轮廓达到稳态轮廓。稳定状态的特征在于每个节点处的增量高度损失几乎等于先前的高度损失。研究了几种复合材料拓扑结构,以确定几何形状和材料性能对磨损性能的关键趋势。
Iterative numerical wear models provide valuable insight into evolving material surfaces under abrasive wear. In this paper, a holistic numerical scheme for predicting the wear of rubbing elements in tribological systems is presented. In order to capture the wear behavior of a multimaterial surface, a finite difference model is developed. The model determines pressure and height loss along a composite surface as it slides against an abrasive compliant countersurface. Using Archard's wear law, the corresponding nodal height loss is found using the appropriate material wear rate, applied pressure, and the incremental sliding distance. This process is iterated until the surface profile reaches a steady-state profile. The steady-state is characterized by the incremental height loss at each node being nearly equivalent to the previous loss in height. Several composite topologies are investigated in order to identify key trends in geometry and material properties on wear performance.
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