Quasi-Brittle Fracture Modeling of Preflawed Bitumen Using a Diffuse Interface Model
Fundamental understandings on the bitumen fracture mechanism are vital to improve the mixture design of asphalt concrete. In this paper, a diffuse interface model, namely, phase-field method is used for modeling the quasi-brittle fracture in bitumen. This method describes the microstructure using a...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/8751646 |
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| _version_ | 1832552984909709312 |
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| author | Yue Hou Fengyan Sun Wenjuan Sun Meng Guo Chao Xing Jiangfeng Wu |
| author_facet | Yue Hou Fengyan Sun Wenjuan Sun Meng Guo Chao Xing Jiangfeng Wu |
| author_sort | Yue Hou |
| collection | DOAJ |
| description | Fundamental understandings on the bitumen fracture mechanism are vital to improve the mixture design of asphalt concrete. In this paper, a diffuse interface model, namely, phase-field method is used for modeling the quasi-brittle fracture in bitumen. This method describes the microstructure using a phase-field variable which assumes one in the intact solid and negative one in the crack region. Only the elastic energy will directly contribute to cracking. To account for the growth of cracks, a nonconserved Allen-Cahn equation is adopted to evolve the phase-field variable. Numerical simulations of fracture are performed in bituminous materials with the consideration of quasi-brittle properties. It is found that the simulation results agree well with classic fracture mechanics. |
| format | Article |
| id | doaj-art-69b94c93cf7845aca743bb028f0a66cd |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-69b94c93cf7845aca743bb028f0a66cd2025-02-03T05:57:10ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/87516468751646Quasi-Brittle Fracture Modeling of Preflawed Bitumen Using a Diffuse Interface ModelYue Hou0Fengyan Sun1Wenjuan Sun2Meng Guo3Chao Xing4Jiangfeng Wu5National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, ChinaNational Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, ChinaThe Via Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USANational Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, ChinaSchool of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150001, ChinaNational Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, ChinaFundamental understandings on the bitumen fracture mechanism are vital to improve the mixture design of asphalt concrete. In this paper, a diffuse interface model, namely, phase-field method is used for modeling the quasi-brittle fracture in bitumen. This method describes the microstructure using a phase-field variable which assumes one in the intact solid and negative one in the crack region. Only the elastic energy will directly contribute to cracking. To account for the growth of cracks, a nonconserved Allen-Cahn equation is adopted to evolve the phase-field variable. Numerical simulations of fracture are performed in bituminous materials with the consideration of quasi-brittle properties. It is found that the simulation results agree well with classic fracture mechanics.http://dx.doi.org/10.1155/2016/8751646 |
| spellingShingle | Yue Hou Fengyan Sun Wenjuan Sun Meng Guo Chao Xing Jiangfeng Wu Quasi-Brittle Fracture Modeling of Preflawed Bitumen Using a Diffuse Interface Model Advances in Materials Science and Engineering |
| title | Quasi-Brittle Fracture Modeling of Preflawed Bitumen Using a Diffuse Interface Model |
| title_full | Quasi-Brittle Fracture Modeling of Preflawed Bitumen Using a Diffuse Interface Model |
| title_fullStr | Quasi-Brittle Fracture Modeling of Preflawed Bitumen Using a Diffuse Interface Model |
| title_full_unstemmed | Quasi-Brittle Fracture Modeling of Preflawed Bitumen Using a Diffuse Interface Model |
| title_short | Quasi-Brittle Fracture Modeling of Preflawed Bitumen Using a Diffuse Interface Model |
| title_sort | quasi brittle fracture modeling of preflawed bitumen using a diffuse interface model |
| url | http://dx.doi.org/10.1155/2016/8751646 |
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