Journal of South China University of Technology (Natural Science Edition) ›› 2013, Vol. 41 ›› Issue (4): 96-101.doi: 10.3969/j.issn.1000-565X.2013.04.016

• Traffic & Transportation Engineering • Previous Articles     Next Articles

Investigation and Verification of Fatigue Failure Criterion of Asphalt Mixtures

Yuan Miao-miao Zhang Xiao-ning Chen Wei-qiang Zhang Shun-xian   

  1. School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2012-09-14 Revised:2013-03-01 Online:2013-04-25 Published:2013-03-01
  • Contact: 苑苗苗(1982-)，女，博士生，主要从事道路工程研究． E-mail:miaomiao220@foxmail.com
  • About author:苑苗苗(1982-)，女，博士生，主要从事道路工程研究．
  • Supported by:

    国家自然科学基金资助项目( 51038004)

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Abstract:

Presently,it is not reached consensus for asphalt mittures fatigue failure criterion. In this paper,based onthe dissipated energy method,the relative change rate of dissipated energy is put forward to characterize the damageaccumulation in the fatigue test process of asphalt mixtures,and the catastrophe point of the relative change ratebased on variable step is taken as the fatigue failure criterion of asphalt mixtures,with a theoretical proof being alsopresented.Then,with the help of this criterion,the feasibility of the proposed prediction model of fatigue performance,which is independent of the load control mode,is verified.

Key words: asphalt mixture, fatigue failure criterion, dissipated energy, relative change rate, four-point bending fatigue test