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Copyright of Journal of Jiangsu University (Natural Science Edition) / Jiangsu Daxue Xuebao (Ziran Kexue Ban) is the property of Editorial Department of Journal of Jiangsu University (Natural Science Edition) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Harbin Institute of Technology. Social Sciences Edition / Haerbin Gongye Daxue Xuebao. Shehui Kexue Ban is the property of Harbin Institute of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to research the fatigue performance of asphalt pavement under repeated load considering the fatigue damage and healing of asphalt mixtures, the discrete element model of asphalt pavement was used to calculate the tensile stress and strain at the bottom of the asphalt layer. Considering the random dynamic loads of vehicle, the influence of load magnitude, rest period Of repeated load and loading sequence on fatigue performance of the asphalt layer was studied. Results show that the tensile stress and strain at the bottom of the asphalt layer fluctuate according to the repeated load. With the increase of rest period of repeated load, the level of stress or strain at the bottom of the asphalt layer is reduced evidently and the amplitude of stress or strain is increased with a certain extent. Different fatigue performances of the asphalt layer are caused by different loading sequences. The fatigue damage of asphalt pavement caused by the sequence from heavy load to light load is more serious than that from light load to heavy load. [ABSTRACT FROM AUTHOR]

Copyright of Journal of China University of Petroleum is the property of China University of Petroleum and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)