Investigation of friction behavior between tire and pavement by molecular dynamics simulations

被引：26
作者：
Guo, Fucheng [1 ]
Zhang, Jiupeng [1 ]
Chen, Zixuan [1 ]
Zhang, Mingliang [1 ]
Pei, Jianzhong [1 ]
Li, Rui [1 ]
机构：
[1] Changan Univ, Key Lab Special Area Highway Engn, Minist Educ, Xian 710064, Shaanxi, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 300卷
基金：
中国国家自然科学基金; 国家重点研发计划;
关键词：
Tire rubber; Pavement aggregate; Coefficient of friction; Materials components; MD simulation; FORCE-FIELDS; AGGREGATE; ADHESION; RESISTANCE; OPLS;
D O I：
10.1016/j.conbuildmat.2021.124037
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In order to clear the relationships between materials genes of tire-pavement and their friction performance, the confined shear simulation was conducted to simulate the friction process between tire rubber and aggregates by using MD simulation. Moreover, the effects of velocity and temperature on friction were also investigated. The results showed that different rubber-aggregate combinations present the different friction performance. Generally, the friction is the relatively largest for the aggregate-SBRaggregate layers compared to BR and NR related layers. By comparison, the friction between calcite and rubber is the smallest, while the friction between microcline and rubber is the largest. The velocities will influence the friction behavior between quartz and rubber. The coefficient of friction will increase firstly and decrease then with the increase of the shear velocity. The variation of coefficient of friction with the velocity can be attributed to the change of the average longitudinal stress during the friction process. The coefficient of friction for NR-quartz and BR-quartz is slightly influenced by the temperatures, while it is significantly influenced for SBR-quartz. The variations of coefficient of friction with the temperature are mainly dominated by the average vertical stress. (c) 2021 Elsevier Ltd. All rights reserved.
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页数：10
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