|Table of Contents|

Influence of running speed on fatigue-damage performance of asphalt pavement based on numerical test(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2013年03期
Page:
14-20
Research Field:
道路工程
Publishing date:

Info

Title:
Influence of running speed on fatigue-damage performance of asphalt pavement based on numerical test
Author(s):
HUANG Bao-tao1;  YUAN Xin1; 2;  YU Lei1;  ZHONG Xiu-li1;  LI Jun3
1. School of Civil Engineering and Architecture, Jiangsu University of Science and Technology, Zhenjiang 212003, Jiangsu, China; 2. School of Civil Engineering, Southeast University, Nanjing 210096, Jiangsu, China; 3. Key Laboratory for Special Area Engineering of the Ministry of Education, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
road engineering;  damage performance;  numerical test;  actual running speed
PACS:
U416.217
DOI:
-
Abstract:
In order to investigate the influence law of running speed on asphalt pavement damage performance, so as to provide basis for microscopic kinetic damage mechanism, a numerical test method was used to investigate the damage performance of asphalt pavement submitted to the actual running speed load with a 3D generation algorithm about asphalt mixture. Graded crushed stone in the asphalt mixture was modeled as the irregular particles, and asphalt's bond strength was translated into irregular particle parallel bond. The results show that the fatigue life and the actual running speed have the same developing trend; the higher the vehicle running speed, the longer the fatigue life of the asphalt pavement. With actual running speed increasing, the fatigue life increase rate decreases to zero at last. The damage stress on the asphalt layer caused by the sequence from heavy to light load is slighter than that caused by the sequence from light to heavy load. The lower the actual running speed, the higher the asphalt layer damage stress, and the bigger the swing level of damage stress. 5 tabs, 9 figs, 10 refs.

References:

[1] 朱洪洲,严 恒,唐伯明.沥青混合料疲劳-蠕变交互作用损伤模型[J].中国公路学报,2011,24(4):15-20. ZHU Hong-zhou,YAN Heng,TANG Bo-ming.Damage model of interaction between fatigue and creep for asphalt mixture[J].China Journal of Highway and Transport,2011,24(4):15-20.(in Chinese)
[2]郑健龙,吕松涛.沥青混合料非线性疲劳损伤模型[J].中国公路学报,2009,22(5):21-28. ZHENG Jian-long,LU Song-tao.Nonlinear fatigue damage model for asphalt mixtures[J].China Journal of Highway and Transport,2009,22(5):21-28.(in Chinese)
[3]周志刚,张清平,袁秀湘.沥青混凝土弯曲疲劳试验疲劳损伤分析[J].中南大学学报:自然科学版,2011,42(6):1743-1751. ZHOU Zhi-gang,ZHANG Qing-ping,YUAN Xiu-xiang.Fatigue damage analysis of asphalt mixture specimen during cyclic bending test[J].Journal of Central South University:Science and Technology,2011,42(6):1743-1751.(in Chinese)
[4]李 智.基于数字图像处理技术的沥青混合料体积组成特性分析[D].哈尔滨:哈尔滨工业大学,2002. LI Zhi.Analysis of the asphalt mixture composition characteristics based on digital image processing technology[D].Harbin:Harbin Institute of Technology,2002.(in Chinese)
[5]王端宜,张肖宁,王绍怀,等.用虚拟试验方法评价沥青混合料的级配类型[J].华南理工大学学报,2003,31(2):48-51. WANG Duan-yi,ZHAGN Xiao-ning,WANG Shao-huai.Evaluation on grading type of asphalt mixture with virtual test method[J].Journal of South China University of Technology:Natural Science,2003,31(2):48-51.(in Chinese)
[6]Wang L B,Frost J D,Shashidhar N.Microstructure study of west track mixes from X-ray tomography images[R].Washington DC:TRB,2001.
[7]Wang L B,Frost J D,Mohammad L,et al.Three-dimensional aggregate evaluation using x-ray tomography imaging[R].Washington DC:TRB,2006.
[8]Liu Y,Feng S R,Hu X G.Discrete element simulation of asphalt mastics based on burgers model[J].Journal of Southwest Jiaotong University:English Edition,2007,15(1):20-25.
[9]You Z P.Development of a micromechanical modeling approach to predict asphalt mixture stiffness using the discrete element method[D].Urbana-Champaign:University of Illinois,2003.
[10]黄宝涛,张敏思,雍 军.振动压实下不规则颗粒细观响应的离散元模拟[J].公路交通科技,2009,26(7):7-12. HUANG Bao-tao,ZHANG Min-si,YONG Jun.Numerical simulation of irregular particle micro-response under vibrating compressive load by DEM[J].Journal of Highway and Transportation Research and Development,2009,26(7):7-12(in Chinese)

Memo

Memo:
-
Last Update: 2013-05-30