Simulation of Bending Fracture Process of Asphalt Mixture Semicircular Specimen with Extended Finite Element Method
In order to numerically simulate the whole fracture process including the initiation and propagation of crack in asphalt concrete semicircular specimens under external force, the extended finite element method (XFEM) was adopted considering the shortcomings of the conventional finite element method...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/4081264 |
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| author | Tian Xiaoge Ren Zhang Zhen Yang Yantian Chu Shaohua Zhen Yichao Xv |
| author_facet | Tian Xiaoge Ren Zhang Zhen Yang Yantian Chu Shaohua Zhen Yichao Xv |
| author_sort | Tian Xiaoge |
| collection | DOAJ |
| description | In order to numerically simulate the whole fracture process including the initiation and propagation of crack in asphalt concrete semicircular specimens under external force, the extended finite element method (XFEM) was adopted considering the shortcomings of the conventional finite element method (FEM). The fracture processes of the semicircular specimens under 5 kinds of loading modes, Me, were analyzed, and the simulation results were compared to the actual fracture paths in the actual specimens. The results indicated that the critical effective stress intensity factor will decrease first and then increase with the increase of Me, and the XFEM simulation results are similar to that of the actual specimens in crack initiation angle and propagation path in the 5 different loading modes. It is proved that the XFEM is very effective in simulating the fracture process and has obvious advantages compared with the FEM. According to the stress state at the crack tip, the initiation angle and its propagation paths were analyzed, and it was pointed out that the increase of the shear stress component caused the crack initial angle to increase with the increase of Me. |
| format | Article |
| id | doaj-art-7497103b4e5c4df6b98e8674c17a3822 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-7497103b4e5c4df6b98e8674c17a38222025-02-03T01:29:17ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/40812644081264Simulation of Bending Fracture Process of Asphalt Mixture Semicircular Specimen with Extended Finite Element MethodTian Xiaoge0Ren Zhang1Zhen Yang2Yantian Chu3Shaohua Zhen4Yichao Xv5School of Traffic & Transportation Engineering, Changsha University of Science & Technology, 960 Wanjiali Road, Tianxin District, Changsha, Hunan 410114, ChinaSchool of Traffic & Transportation Engineering, Changsha University of Science & Technology, 960 Wanjiali Road, Tianxin District, Changsha, Hunan 410114, ChinaSchool of Traffic & Transportation Engineering, Changsha University of Science & Technology, 960 Wanjiali Road, Tianxin District, Changsha, Hunan 410114, ChinaSchool of Traffic & Transportation Engineering, Changsha University of Science & Technology, 960 Wanjiali Road, Tianxin District, Changsha, Hunan 410114, ChinaSchool of Traffic & Transportation Engineering, Changsha University of Science & Technology, 960 Wanjiali Road, Tianxin District, Changsha, Hunan 410114, ChinaSchool of Traffic & Transportation Engineering, Changsha University of Science & Technology, 960 Wanjiali Road, Tianxin District, Changsha, Hunan 410114, ChinaIn order to numerically simulate the whole fracture process including the initiation and propagation of crack in asphalt concrete semicircular specimens under external force, the extended finite element method (XFEM) was adopted considering the shortcomings of the conventional finite element method (FEM). The fracture processes of the semicircular specimens under 5 kinds of loading modes, Me, were analyzed, and the simulation results were compared to the actual fracture paths in the actual specimens. The results indicated that the critical effective stress intensity factor will decrease first and then increase with the increase of Me, and the XFEM simulation results are similar to that of the actual specimens in crack initiation angle and propagation path in the 5 different loading modes. It is proved that the XFEM is very effective in simulating the fracture process and has obvious advantages compared with the FEM. According to the stress state at the crack tip, the initiation angle and its propagation paths were analyzed, and it was pointed out that the increase of the shear stress component caused the crack initial angle to increase with the increase of Me.http://dx.doi.org/10.1155/2018/4081264 |
| spellingShingle | Tian Xiaoge Ren Zhang Zhen Yang Yantian Chu Shaohua Zhen Yichao Xv Simulation of Bending Fracture Process of Asphalt Mixture Semicircular Specimen with Extended Finite Element Method Advances in Materials Science and Engineering |
| title | Simulation of Bending Fracture Process of Asphalt Mixture Semicircular Specimen with Extended Finite Element Method |
| title_full | Simulation of Bending Fracture Process of Asphalt Mixture Semicircular Specimen with Extended Finite Element Method |
| title_fullStr | Simulation of Bending Fracture Process of Asphalt Mixture Semicircular Specimen with Extended Finite Element Method |
| title_full_unstemmed | Simulation of Bending Fracture Process of Asphalt Mixture Semicircular Specimen with Extended Finite Element Method |
| title_short | Simulation of Bending Fracture Process of Asphalt Mixture Semicircular Specimen with Extended Finite Element Method |
| title_sort | simulation of bending fracture process of asphalt mixture semicircular specimen with extended finite element method |
| url | http://dx.doi.org/10.1155/2018/4081264 |
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