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Mechanical response analysis of asphalt pavement considering top-down crack based on FDM-DEM coupling simulation

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成果类型:
期刊论文
作者:
Min Wang;Xin Yu*;Chen Chen
通讯作者:
Xin Yu
作者机构:
[Min Wang] College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China
School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha 410114, China
College of Water Conservancy & Hydropower Engineering, Hohai University, Nanjing 210098, China
National Engineering Research Center of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, China
[Xin Yu] College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China<&wdkj&>School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha 410114, China<&wdkj&>National Engineering Research Center of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, China
通讯机构:
[Xin Yu] C
College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China<&wdkj&>School of Traffic & Transportation Engineering, Changsha University of Science & Technology, Changsha 410114, China<&wdkj&>National Engineering Research Center of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, China
语种:
英文
关键词:
Full-scale pavement structure;Top-down crack;FDM-DEM coupling model;Mechanical response
期刊:
道路工程学报(英文)
ISSN:
2097-0498
年:
2025
机构署名:
本校为通讯机构
院系归属:
交通运输工程学院
摘要:
The occurrence of top-down (TD) cracking has gradually become a prevalent issue in semi-rigid base asphalt pavements after prolonged service. A coupled simulation model integrating the finite difference method (FDM) and discrete element method (DEM) was employed to investigate the mechanical behavior of asphalt pavement containing a pre-existing TD crack. The mesoscopic parameters of the model were calibrated based on the mixture modulus and the static mechanical response on the MLS66 test road. Finally, an analysis was performed to assess how variations in TD crack depth and longitudinal leng...

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