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

Guo, Fei; Zhang, Jiupeng; Chen, Zixuan; Zhang, Mingliang; Pei, Jianzhong

doi:10.1016/j.conbuildmat.2021.124037

Cited by 21 publications

(6 citation statements)

References 25 publications

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“…Fukahori [ 15 ] suggested that the adhesive friction on rubber surfaces increases almost proportionally with the increase in velocity. Fucheng Guo [ 16 ] obtained similar results using molecular dynamics. As the shear velocity increases, the friction coefficient first increases and then decreases.…”

Section: Resultsmentioning

confidence: 71%

A Study of the Friction Characteristics of Rubber Thermo-Mechanical Coupling

Liu,

Wang,

Yin

2024

Polymers

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The friction performance of tread rubber is related to the safety of the vehicle during driving, especially in terms of shifting speeds, cornering, and changing environmental factors. The experimental design used in this paper employed a self-developed automatic multi-working-condition friction tester to investigate the correlation between the friction coefficient of three tread formulations and various factors, including speed, pressure, temperature, side deflection angle, and lateral camber. This experimental study demonstrates that the coefficient of friction decreases with increasing load and increases with increasing sliding velocities due to changes in adhesion friction. Due to the increasing and decreasing changes in rubber adhesion and hysteresis friction caused by temperature, the coefficient of friction shows a tendency to increase and then decrease with the increase in temperature; thus, temperature has an important effect on the coefficient of friction. Based on the basic theory of friction and experimental research, the Dorsch friction model was modified in terms of temperature, and the analytical relationship between the rubber friction coefficient and the combined variables of contact pressure, slip velocity, and temperature was established, which is more in line with the actual situation of rubber friction. The model predictions were compared with the experimental results, and the error accuracy was controlled within 5%. This verifies the accuracy of the model and provides a theoretical basis for the study of rubber friction.

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Section: Resultsmentioning

confidence: 71%

A Study of the Friction Characteristics of Rubber Thermo-Mechanical Coupling

Liu,

Wang,

Yin

2024

Polymers

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“…The results show that NP can enhance the strength of SBR, and the strength of SBR increases with the increase of NP volume fraction and particle size. Guo et al 11 used MD simulation method to simulate the friction process between tire rubber and aggregate. After simulation, it was found that the friction coefficient of SBR was greatly affected by temperature, and the change of friction coefficient with temperature was mainly affected by the average vertical stress.…”

Section: Introductionmentioning

confidence: 99%

Study on micromolecular mechanical properties of C-atom reinforced SBR polymer composites

Chen,

Liu,

Fan

et al. 2024

Sci Rep

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A three-layer microscopic model with Fe atoms as the top and bottom layer and SBR polymer composites as the middle layer and SBR polymer composite was established and studied. By adding C atoms as reinforcement, the stability and elastic modulus and frictional coefficient changes of SBR polymer composites before and after adding C atoms were studied. In this study, the molecular dynamics method was used to change of elastic modulus was observed by stretching, compression and shear of the SBR polymer composite; The simulation shows that after adding C atom the elastic modulus of SBR polymer composite increased, the friction coefficient of polymer composite upper and lower decreases and the relative atomsic concentration, temperature, velocity, overall temperature average, kinetic energy, total energy and MSD in the thickness direction are reduced after adding C atoms. The stability of SBR polymer composites is enhanced, and the deformation under shear is weakened. In addition, it is found that the binding energy between SBR polymer composites and Fe atoms is reduced after adding C atoms.The stability of SBR polymer composites is improved during use. This work provides a method for studying the properties of rubber composites by studying the enhancement of the stability of SBR polymer composites from the microscopic point of view.

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“…In recent years, molecular dynamics (MD) has become a very effective method for calculating material properties on the atomic scale. [23][24][25] Guo et al 26 used the MD simulation method to study the friction behavior of tire rubber and road surface and the influence of speed and temperature on its friction properties. The results show that as the shear speed increases, the COF increases first and then decreases.…”

Section: Introductionmentioning

confidence: 99%

Friction properties of graphene reinforced nitrile rubber composites after thermal oxidation aging: Experiment and molecular dynamics simulation

Zhao,

Yu,

Yang

et al. 2023

J of Applied Polymer Sci

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We established friction models for pure NBR, GNS/NBR, and GO/NBR composites through molecular dynamics (MD) simulation. Our study focused on the impact of GNS and GO on the friction properties of nitrile rubber (NBR) composite materials after undergoing thermal oxygen aging. Based on the simulation results, it can be observed that the GNS/NBR and GO/NBR composites' coefficient of friction (COF) decreases by 20.8% and 24.8%, respectively, at 348 K. Additionally, the abrasion rate is reduced by 17.4% and 25.7%, respectively, for the same composites. Adding GNS and GO can effectively improve the friction performance of the NBR composite system, and compared with GNS, GO shows a better enhancement effect. Pure NBR and GO/NBR composite materials were prepared by mechanical blending method, and the friction properties of GO‐enhanced NBR composite materials were studied. The experimental results show that the GO/NBR composite material can maintain a low friction and wear coefficient after thermal and oxygen aging. It shows that adding GO can effectively improve the friction properties of NBR composite systems and slow down the weakening effect of aging on the friction properties of NBR composite materials. This is because the GO surface contains wealthy functional groups such as epoxy groups, which enhances the binding strength between the GO and NBR interface so that the GO/NBR composite material exhibits better friction properties and thermal oxygen aging resistance. In addition, the wear surface was characterized by scanning electron microscopy (SEM), revealing the damage mechanism of friction and wear of NBR composite materials.

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

Cited by 21 publications

References 25 publications

A Study of the Friction Characteristics of Rubber Thermo-Mechanical Coupling

A Study of the Friction Characteristics of Rubber Thermo-Mechanical Coupling

Study on micromolecular mechanical properties of C-atom reinforced SBR polymer composites

Friction properties of graphene reinforced nitrile rubber composites after thermal oxidation aging: Experiment and molecular dynamics simulation

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