[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(
)
基于内聚力模型的沥青混凝土疲劳损伤数值研究
)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
- 基于内聚力模型的沥青混凝土疲劳损伤数值研究
- 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.
- 为了研究沥青混凝土的疲劳特性, 提出了基于双线性内聚力模型(CZM)的数值模拟方法.建立了疲劳损伤演化模型并将其与内聚力模型耦合, 以反映沥青混凝土在循环荷载作用下的软化行为.通过编制用户材料子程序, 实现了疲劳损伤模型在有限元软件ABAQUS中的应用, 并对劈裂疲劳试验进行了模拟.研究结果表明:模拟得到的疲劳寿命与实验室结果基本一致;疲劳损伤随加载次数的累积是非线性的, 且损伤累积阶段是疲劳破坏的主要阶段;应力比增大时, 损伤稳态发展阶段的寿命明显减小.可以发现提出的疲劳损伤数值模型是一种预估沥青混凝土疲劳损伤的有效方法.
References:
[1] Kim Y R, Little D N, Lytton R L, et al. Fatigue and healing characterization of asphalt mixtures [J]. Journal of Materials in Civil Engineering, 2003, 15(1):75-83.
[2] Lee H J, Daniel J S, Kim Y R. Continuum damage mechanics-based fracture model of asphalt concrete [J]. Journal of Materials in Civil Engineering, 2000, 12(2):105-113.
[3] Kim Y R. Mechanistic fatigue characterization and damage modeling of asphalt mixtures [D]. College Station, TX, USA: Texas A& M University, 2003.
[4] Ghuzlan K A, Carpenter S H. Fatigue damage analysis in asphalt concrete mixtures using the dissipated energy approach [J]. Canadian Journal of Civil Engineering, 2006, 33(7):890-901.
[5] Barrenblatt G I. The mathematical theory of equilibrium of cracks in brittle fracture [J]. Advances in Applied Mechanics, 1962, 7(3): 55-129.
[6] Dugdale D S. Yielding of steel sheets containing slits[J]. Journal of the Mechanics and Physics of Solids, 1960, 8(2): 100-104.
[7] Rice J R. Mathematical analysis in the mechanics of fracture: an advanced treaties [M]. New York: Academic Press, 1968: 191-311.
[8] Soares J B, Freitas F A C, Allen D H. Crack modeling of asphalt mixtures considering heterogeneity of the material [J]. Transportation Research Record, 2003, 1832: 113-120.
[9] Tvergaard V, Hutchinson J W. The relation between crack growth resistance and fracture process parameters in elastic-plastic solids [J]. Journal of the Mechanics and Physics of Solids, 1992, 46(6):1377-1397.
[10] Song S H. Fracture of asphalt concrete: a cohesive zone model approach considering viscoelastic effects[D]. Champaign, IL, USA: University of Illinois at Urbana-Champaign, 2006.
[11] Kim H, Wagoner M P, Buttlar W G. Numerical fracture analysis on the specimen size dependency of asphalt concrete using a cohesive softening model [J]. Construction and Building Materials, 2009, 23(5): 2112-2120.
[12] Caro S, Masad E, Bhasin A, et al. Micromechanical modeling of the influence of material properties on moisture-induced damage in asphalt mixtures [J]. Construction and Building Materials, 2010, 24(7): 1184-1192.
[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.
[14] Kim Y R, Allen D, Little D. Computational model to predict fatigue damage behavior of asphalt mixtures under cyclic loading[J]. Transportation Research Record, 2006, 1970: 196-206.
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]