动荷载作用下材料阻尼参数对Top-Down裂缝疲劳寿命的影响分析
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摘要
通过ABAQUS有限元软件建立带缝工作的二维路面模型,通过正弦波模拟车辆对路面的动荷载效应,通过虚拟闭合法,计算沥青路面Top-Down裂缝的应力强度因子K2,并探讨了考虑沥青混合料阻尼特征下,沥青路面的剪切型强度因子K2的变化规律,再进一步通过Paris模型,分析阻尼特征对Top-Down裂缝疲劳寿命的影响。以期为路面动态破坏研究提供一定的理论参考。
This paper via ABAQUS finite element software,established 2D pavement model working with crack.simulating dynamic load effects on the road by sine wave,using Virtual closing legal,asphalt pavement crack stress intensity factor K2 are calculated,and the sametime,Material damping parameters are considered,to discover the variation of K2,then using Paris formula,analysis the fatigue life effected by material damping parameters.In order to provide a theoretical reference of pavement dynamic damage study.
This paper via ABAQUS finite element software,established 2D pavement model working with crack.simulating dynamic load effects on the road by sine wave,using Virtual closing legal,asphalt pavement crack stress intensity factor K2 are calculated,and the sametime,Material damping parameters are considered,to discover the variation of K2,then using Paris formula,analysis the fatigue life effected by material damping parameters.In order to provide a theoretical reference of pavement dynamic damage study.
引文
[1]李峰,孙立军.沥青路面Top-Down开裂成因的有限元分析[J].公路交通科技,2006,23(6):1-4.
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[4]毛成.沥青路面裂纹形成机理及扩展行为研究[D].成都:西南交通大学,2006.
[5]廖公云,黄晓明.ABAQUS有限元软件在道路工程中的应用[M].南京:东南大学出版社,2008,153-199.
[6]解德,钱勤,李长安.断裂力学中的数值计算方法及工程运用[M].北京:科学出版社,2009.
[7]Li Y Q,Metcalf John B.Fatigue Characteristics of Asphalt Concrete from Asphalt Slab Tests.Journal of Materials in Civil Engineering,2004,1 6(4):306.314.
[8]Mahboud KC,Liu Yinhui,Allen DL.Asphalt overlay and subsurface drainage of broken and seated concrete pavement[J].Journal of Transportation Engineering,2005,131(8):617-622.
[9]Diyar Bozkurt.Three Dimensional Finite Element Analysis to Evaluate Reflective Cracking Potential in Asphalt Concrete Overlays[D].University of Illinois,PHd,2002.
[10]万泽青,刘平,施伟.高阻尼混凝土的试验研究及阻尼机理探讨[J].混凝土,2007(7):37-40.
[11]汪梦甫,宋兴禹.高阻尼混凝土构件阻尼性能研究[J],振动与冲击,2011(11):173-179.
[2]Roque R,Birgisson B,Drakos C,et a1.Development and field evaluation of energy-hased criteria for Top-Down cracking performance of hot mix asphalt[J].Journal of the Association of Asphalt Paving Technologists,2004,73:229.
[3]易昕.三维有限元方法分析沥青路面自上而下裂缝的扩展[D].长沙:湖南大学,2006.
[4]毛成.沥青路面裂纹形成机理及扩展行为研究[D].成都:西南交通大学,2006.
[5]廖公云,黄晓明.ABAQUS有限元软件在道路工程中的应用[M].南京:东南大学出版社,2008,153-199.
[6]解德,钱勤,李长安.断裂力学中的数值计算方法及工程运用[M].北京:科学出版社,2009.
[7]Li Y Q,Metcalf John B.Fatigue Characteristics of Asphalt Concrete from Asphalt Slab Tests.Journal of Materials in Civil Engineering,2004,1 6(4):306.314.
[8]Mahboud KC,Liu Yinhui,Allen DL.Asphalt overlay and subsurface drainage of broken and seated concrete pavement[J].Journal of Transportation Engineering,2005,131(8):617-622.
[9]Diyar Bozkurt.Three Dimensional Finite Element Analysis to Evaluate Reflective Cracking Potential in Asphalt Concrete Overlays[D].University of Illinois,PHd,2002.
[10]万泽青,刘平,施伟.高阻尼混凝土的试验研究及阻尼机理探讨[J].混凝土,2007(7):37-40.
[11]汪梦甫,宋兴禹.高阻尼混凝土构件阻尼性能研究[J],振动与冲击,2011(11):173-179.