[1] Jin Guanglai, Huang Xiaoming, Zhang Sulong, et al. Numerical study of fatigue damage of asphalt concreteusing cohesive zone model [J]. Journal of Southeast University (English Edition), 2013, 29 (4): 431-435. [doi:10.3969/j.issn.1003-7985.2013.04.014]

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Numerical study of fatigue damage of asphalt concreteusing cohesive zone model()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

29

Issue:

2013 4

Page:

431-435

Research Field:

Traffic and Transportation Engineering

Publishing date:

2013-12-20

Info

Title:

Numerical study of fatigue damage of asphalt concreteusing cohesive zone model

Author(s):

Jin Guanglai¹;  2;  Huang Xiaoming¹;  Zhang Sulong¹;  Liang Yanlong¹

¹School of Transportation, Southeast University, Nanjing 210096, China
²Key Laboratory of Highway Engineering of Sichuan Province, Southwest Jiaotong University, Chengdu 610031, China

Keywords:

fatigue damage;  indirect tensile fatigue test;  asphalt concrete;  cohesive zone model;  numerical simulation;  finite element method

PACS:

U414

DOI:

10.3969/j.issn.1003-7985.2013.04.014

Abstract:

In order to investigate the fatigue behavior of asphalt concrete, a new numerical approach based on a bi-linear cohesive zone model(CZM)is developed. Integrated with the CZM, a fatigue damage evolution model is established to indicate the gradual degradation of cohesive properties of asphalt concrete under cyclic loading. Then the model is implemented in the finite element software ABAQUS through a user-defined subroutine. Based on the proposed model, an indirect tensile fatigue test is finally simulated. The fatigue lives obtained through numerical analysis show good agreement with laboratory results. Fatigue damage accumulates in a nonlinear manner during the cyclic loading process and damage initiation phase is the major part of fatigue failure. As the stress ratio increases, the time of the steady damage growth stage decreases significantly. It is found that the proposed fatigue damage evolution model can serve as an accurate and efficient tool for the prediction of fatigue damage of asphalt concrete.

References:

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[13] Yin Anyi, Yang Xinhua, Yang Zhenjun. 2D and 3D fracture modeling of asphalt mixture with randomly distributed aggregates and embedded cohesive cracks [C]//IUTAM Symposium on Multiscale Problems in Stochastic Mechanics. Karlsruhe, Germany, 2012: 114-122.
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Memo

Memo:

Biographies: Jin Guanglai(1987—), male, graduate; Huang Xiaoming(corresponding author), male, doctor, professor, huangxm@seu.edu.cn.
Foundation item: The Open Research Fund of Key Laboratory of Highway Engineering of Sichuan Province of Southwest Jiaotong University(No.LHTE002201102).
Citation: Jin Guanglai, Huang Xiaoming, Zhang Sulong, et al.Numerical study of fatigue damage of asphalt concrete using cohesive zone model[J].Journal of Southeast University(English Edition), 2013, 29(4):431-435.[doi:10.3969/j.issn.1003-7985.2013.04.014]

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