[1] Zhao Yanjing, Ni Fujian,. Reflective cracking viscoelastic responseof asphalt concrete under dynamic vehicle loading [J]. Journal of Southeast University (English Edition), 2009, 25 (3): 391-394. [doi:10.3969/j.issn.1003-7985.2009.03.022]

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Reflective cracking viscoelastic responseof asphalt concrete under dynamic vehicle loading()

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

Volumn:

25

Issue:

2009 3

Page:

391-394

Research Field:

Traffic and Transportation Engineering

Publishing date:

2009-09-30

Info

Title:

Reflective cracking viscoelastic responseof asphalt concrete under dynamic vehicle loading

Author(s):

Zhao Yanjing;  Ni Fujian

School of Transportation, Southeast University, Nanjing 210096, China

Keywords:

asphalt pavement;  viscoelastic;  finite element method;  reflective cracking;  dynamic vehicle loading

PACS:

U443.33

DOI:

10.3969/j.issn.1003-7985.2009.03.022

Abstract:

In order to investigate the mechanical response of reflective cracking in asphalt concrete pavement under dynamic vehicle loading, a finite element model is established in ABAQUS.The viscoelastic behavior is described by a prony series which is calculated through nonlinear fitting to the creep test data obtained in the laboratory.Based on the viscoelastic theory, the time-temperature equivalence principle, fracture mechanics and the dynamic finite element method, both the J-integral and the mix-mode stress intensity factor are utilized as fracture evaluation parameters, and a half-sine dynamic loading is used to simulate the vehicle loading.Finally, the mechanical response of the pavement reflective cracking is analyzed under different vehicle speeds, different environmental conditions and various damping factors.The results indicate that increasing either the vehicle speed or the structure damping factor decreases the maximum values of fracture parameters, while the structure temperature has little effect on the fracture parameters. Due to the fact that the vehicle speed can be enhanced by improving the road traffic conditions, and the pavement damping factor can become greater by modifying the components of materials, the development of reflective cracking can be delayed and the asphalt pavement service life can be effectively extended through both of these ways.

References:

[1] Zhang Xiaoning.The theory and application of viscoelastic mechanics for asphalt and asphalt concrete[M].Beijing:China Communications Press, 2006:1-6.(in Chinese)
[2] Lu Y, Wright P J.Numerical approach of visco-elastoplastic analysis for asphalt mixture[J].Computer and Structures, 1998, 69(2):139-147.
[3] Qian Guoping, Guo Zongyin, Zheng Jianlong, et al.Calculation for thermal stress of asphalt pavement under environment conditions based on thermal viscoelastic theory[J].Journal of Tongji University: Natural Science, 2003, 31(2):150-155.(in Chinese)
[4] Huang Zhiyi, Wang Jinchang, Zhu Xiangrong.Viscoelastic fracture analysis of asphalt concrete pavement with cracks[J].China Journal of Highway and Transport, 2006, 41(1):114-119.(in Chinese)
[5] Hibbitt, Karlsson, Sorensen, Inc.ABAQUS/Standard user’s manual;ABAQUS/CAE user’s manual;ABAQUS keywords manual;ABAQUS theory manual [M].Hibbitt, Karlsson, Sorensen, Inc, 2002.
[6] Zheng Jianlong, Zhou Zhigang, Ying Ronghua.Numerical analysis of asphalt pavement thermal stress[J].Journal of Changsha Communications University, 2001, 17(1):29-32.(in Chinese)
[7] Li Qiang.Research on the design indexes of reflective cracking in semi-rigid base asphalt pavements [D].Nanjing:School of Transportation of Southeast University, 2007.(in Chinese)
[8] Lü Songtao, Tian Xiaoge, Zheng Jianlong.Test of viscoelastic parameters of bituminous mixture and its application in the constitutive model [J].Journal of Changsha Communications University, 2005, 21(1):37-42.(in Chinese)
[9] Zhao Yanjing.Research on anti-cracking performance of bottom layer for semi-rigid base asphalt pavements [D].Nanjing:School of Transportation of Southeast University, 2008.(in Chinese)
[10] Huang Yangxian.Pavement analysis and design [M].Beijing:China Communications Press, 1994:63-64.(in Chinese)
[11] Zhang Wenyuan.Dynamic mechanics analysis of finite element method in ABAQUS [M].Hong Kong:China Tushu Publishing Limited, 2005:49-58.(in Chinese)
[12] Ramsamooj D V, Lin G S.Stress at joints and cracks in highway and airport pavements [J].Engineering Fracture Mechanics, 1999, 60(6):507-518.

Memo

Memo:

Biographies: Zhao Yanjing(1983—), male, graduate;Ni Fujian(corresponding author), male, doctor, professor, nifujian@gmail.com.
Citation: Zhao Yanjing, Ni Fujian.Reflective cracking viscoelastic response of asphalt concrete under dynamic vehicle loading[J].Journal of Southeast University(English Edition), 2009, 25(3):391-394.

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