Discrete Element Modeling of the Meso-Mechanical Response of Asphalt Pavement under Vehicle Load
Numerical simulation is an effective way to study the mechanical response of asphalt pavement, which is very important for the pavement structural design. In this study, a three-dimensional meso-structure discrete element model of asphalt pavement was generated with the FISH programming language and...
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| Format: | Article |
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MDPI AG
2022-11-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/21/7808 |
| _version_ | 1797467393793982464 |
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| author | Dong Zhang Chunying Wu Lili Cai Jiang Bian Chaoen Yin |
| author_facet | Dong Zhang Chunying Wu Lili Cai Jiang Bian Chaoen Yin |
| author_sort | Dong Zhang |
| collection | DOAJ |
| description | Numerical simulation is an effective way to study the mechanical response of asphalt pavement, which is very important for the pavement structural design. In this study, a three-dimensional meso-structure discrete element model of asphalt pavement was generated with the FISH programming language and its meso-mechanical response under vehicle load was analyzed. The contact forces within the asphalt pavement, in asphalt mastic, in coarse aggregates and between asphalt mastic and coarse aggregates were studied. The results of the study show that the contact forces within the asphalt mixture are highly uneven. The number of contact points in coarse aggregates account only for about 10% of all contact points while the sum of the contact forces in coarse aggregates contributes to over 50% of all contact forces. This demonstrates that the coarse aggregates bear most of the vehicle load. The average normal contact force in coarse aggregates is about 5 N and the average tangential contact force in coarse aggregates is about 2 N. The modeling results provide a quantitative understanding of the distribution of loading in asphalt pavement. |
| first_indexed | 2024-03-09T18:53:01Z |
| format | Article |
| id | doaj.art-8a268dfe43a5493c80d7b5265164c57e |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T18:53:01Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-8a268dfe43a5493c80d7b5265164c57e2023-11-24T05:41:11ZengMDPI AGMaterials1996-19442022-11-011521780810.3390/ma15217808Discrete Element Modeling of the Meso-Mechanical Response of Asphalt Pavement under Vehicle LoadDong Zhang0Chunying Wu1Lili Cai2Jiang Bian3Chaoen Yin4College of Transportation Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Transportation Engineering, Nanjing Tech University, Nanjing 211816, ChinaNanjing Ningtong Intelligent Transportation Technology Research Institute Co., Ltd., Nanjing 211135, ChinaCollege of Transportation Engineering, Nanjing Tech University, Nanjing 211816, ChinaCollege of Transportation Engineering, Nanjing Tech University, Nanjing 211816, ChinaNumerical simulation is an effective way to study the mechanical response of asphalt pavement, which is very important for the pavement structural design. In this study, a three-dimensional meso-structure discrete element model of asphalt pavement was generated with the FISH programming language and its meso-mechanical response under vehicle load was analyzed. The contact forces within the asphalt pavement, in asphalt mastic, in coarse aggregates and between asphalt mastic and coarse aggregates were studied. The results of the study show that the contact forces within the asphalt mixture are highly uneven. The number of contact points in coarse aggregates account only for about 10% of all contact points while the sum of the contact forces in coarse aggregates contributes to over 50% of all contact forces. This demonstrates that the coarse aggregates bear most of the vehicle load. The average normal contact force in coarse aggregates is about 5 N and the average tangential contact force in coarse aggregates is about 2 N. The modeling results provide a quantitative understanding of the distribution of loading in asphalt pavement.https://www.mdpi.com/1996-1944/15/21/7808asphalt pavementdiscrete element methodmeso-mechanical responsecontact forces |
| spellingShingle | Dong Zhang Chunying Wu Lili Cai Jiang Bian Chaoen Yin Discrete Element Modeling of the Meso-Mechanical Response of Asphalt Pavement under Vehicle Load Materials asphalt pavement discrete element method meso-mechanical response contact forces |
| title | Discrete Element Modeling of the Meso-Mechanical Response of Asphalt Pavement under Vehicle Load |
| title_full | Discrete Element Modeling of the Meso-Mechanical Response of Asphalt Pavement under Vehicle Load |
| title_fullStr | Discrete Element Modeling of the Meso-Mechanical Response of Asphalt Pavement under Vehicle Load |
| title_full_unstemmed | Discrete Element Modeling of the Meso-Mechanical Response of Asphalt Pavement under Vehicle Load |
| title_short | Discrete Element Modeling of the Meso-Mechanical Response of Asphalt Pavement under Vehicle Load |
| title_sort | discrete element modeling of the meso mechanical response of asphalt pavement under vehicle load |
| topic | asphalt pavement discrete element method meso-mechanical response contact forces |
| url | https://www.mdpi.com/1996-1944/15/21/7808 |
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