Molecular dynamics study on dynamic interlayer friction of graphene and its strain effect
This study delves into the mechanism of dynamic sliding friction between layers of graphene and its strain effect, through numerical analysis using molecular dynamics simulations. To eliminate the influence of commensurability and edge effect, a friction pair model with annular graphene as a slider...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2023-10-01
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| Series: | Nanotechnology Reviews |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/ntrev-2023-0128 |
| _version_ | 1797635952446799872 |
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| author | Huang Jianzhang Gan Shuang Cai Yi Liu Yijie Liang Yingjing |
| author_facet | Huang Jianzhang Gan Shuang Cai Yi Liu Yijie Liang Yingjing |
| author_sort | Huang Jianzhang |
| collection | DOAJ |
| description | This study delves into the mechanism of dynamic sliding friction between layers of graphene and its strain effect, through numerical analysis using molecular dynamics simulations. To eliminate the influence of commensurability and edge effect, a friction pair model with annular graphene as a slider is established. The research explores the quantifying effects of temperature, normal load, sliding velocity, support stiffness, and axial strain on the friction between graphene layers. The coupling effect of temperature and other influencing factors is also clarified. The results indicate that the interlayer friction increases with normal load by decreasing the interlayer spacing and increasing the atomic vibration amplitude. The ploughing phenomenon does not appear since the edge effect is eliminated by the model. Friction is initially enhanced at higher sliding velocities, but is later reduced by severe residual deformation and lattice resonance frequency. The support stiffness regulates interlayer friction by affecting the atomic vibration amplitude of the graphene lattice. Mechanism analysis shows that the number of effective contact atoms increases under axial strain, and the lattice vibration frequency is the main way to regulate the interlayer friction by strain effect. Our findings provide a fundamental understanding of the strains engineering of nanoscale friction and reveal the influence mechanism of affecting factors on the dynamic friction of graphene. |
| first_indexed | 2024-03-11T12:27:21Z |
| format | Article |
| id | doaj.art-1d8e5a6b05844bf6a1ed6dffdfa0761f |
| institution | Directory Open Access Journal |
| issn | 2191-9097 |
| language | English |
| last_indexed | 2024-03-11T12:27:21Z |
| publishDate | 2023-10-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanotechnology Reviews |
| spelling | doaj.art-1d8e5a6b05844bf6a1ed6dffdfa0761f2023-11-06T07:13:31ZengDe GruyterNanotechnology Reviews2191-90972023-10-011212157087810.1515/ntrev-2023-0128Molecular dynamics study on dynamic interlayer friction of graphene and its strain effectHuang Jianzhang0Gan Shuang1Cai Yi2Liu Yijie3Liang Yingjing4Department of Engineering Mechanics, School of Civil Engineering, Guangzhou University, Guangzhou, Guangdong 510006, ChinaDepartment of Engineering Mechanics, School of Civil Engineering, Guangzhou University, Guangzhou, Guangdong 510006, ChinaDepartment of Engineering Mechanics, School of Civil Engineering, Guangzhou University, Guangzhou, Guangdong 510006, ChinaDepartment of Engineering Mechanics, School of Civil Engineering, Guangzhou University, Guangzhou, Guangdong 510006, ChinaDepartment of Engineering Mechanics, School of Civil Engineering, Guangzhou University, Guangzhou, Guangdong 510006, ChinaThis study delves into the mechanism of dynamic sliding friction between layers of graphene and its strain effect, through numerical analysis using molecular dynamics simulations. To eliminate the influence of commensurability and edge effect, a friction pair model with annular graphene as a slider is established. The research explores the quantifying effects of temperature, normal load, sliding velocity, support stiffness, and axial strain on the friction between graphene layers. The coupling effect of temperature and other influencing factors is also clarified. The results indicate that the interlayer friction increases with normal load by decreasing the interlayer spacing and increasing the atomic vibration amplitude. The ploughing phenomenon does not appear since the edge effect is eliminated by the model. Friction is initially enhanced at higher sliding velocities, but is later reduced by severe residual deformation and lattice resonance frequency. The support stiffness regulates interlayer friction by affecting the atomic vibration amplitude of the graphene lattice. Mechanism analysis shows that the number of effective contact atoms increases under axial strain, and the lattice vibration frequency is the main way to regulate the interlayer friction by strain effect. Our findings provide a fundamental understanding of the strains engineering of nanoscale friction and reveal the influence mechanism of affecting factors on the dynamic friction of graphene.https://doi.org/10.1515/ntrev-2023-0128dynamic interlayer frictionstrain effectslattice vibrationcommensurabilitygraphene |
| spellingShingle | Huang Jianzhang Gan Shuang Cai Yi Liu Yijie Liang Yingjing Molecular dynamics study on dynamic interlayer friction of graphene and its strain effect Nanotechnology Reviews dynamic interlayer friction strain effects lattice vibration commensurability graphene |
| title | Molecular dynamics study on dynamic interlayer friction of graphene and its strain effect |
| title_full | Molecular dynamics study on dynamic interlayer friction of graphene and its strain effect |
| title_fullStr | Molecular dynamics study on dynamic interlayer friction of graphene and its strain effect |
| title_full_unstemmed | Molecular dynamics study on dynamic interlayer friction of graphene and its strain effect |
| title_short | Molecular dynamics study on dynamic interlayer friction of graphene and its strain effect |
| title_sort | molecular dynamics study on dynamic interlayer friction of graphene and its strain effect |
| topic | dynamic interlayer friction strain effects lattice vibration commensurability graphene |
| url | https://doi.org/10.1515/ntrev-2023-0128 |
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