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沥青混合料疲劳-蠕变交互作用损伤模型

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Keywords: 道路工程,沥青混合料,损伤演化方程,蠕变损伤,疲劳损伤

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Abstract:

?为了研究沥青混合料在重复荷载作用下的疲劳特性并描述疲劳-蠕变损伤效应共同作用的过程,考虑沥青混合料具有的动态性质,从粘弹性损伤力学基本理论出发,基于应变等效假设,采用复数模量定义了损伤变量。通过分析沥青混合料在周期荷载作用下的损伤变化规律,运用疲劳-蠕变耦合损伤理论,建立了疲劳-蠕变损伤效应共同作用时的损伤演化方程,提出了体现温度及应力影响的损伤模型和疲劳寿命预测模型,并对损伤模型进行了分析。研究结果表明:构建的损伤模型满足热力学准则和物理条件;沥青混合料疲劳失效是由疲劳-蠕变损伤效应共同影响所致;利用提出的疲劳模型可以更好地预测不同温度和应力条件下的沥青混合料疲劳寿命。

References

[1]  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.
[2]  CASTRO M,SANCHEZ J A.Estimation of Asphalt Concrete Fatigue Curves-a Damage Theory Approach[J].Construction and Building Materials,2008,22(6):1232-1238.
[3]  ZHANG Jiu-peng,HUANG Xiao-ming,MA Tao.Damage-creep Characteristics and Model of Asphalt Mixture[J].Chinese Journal of Geotechnical En-gineering,2008,30(12):1867-1871.
[4]  ZHENG Jian-long,LU Song-tao,TIAN Xiao-ge.Viscoelastic Damage Characteristics of Asphalt Based on Creep Test[J].Engineering Mechanics,2008,25(2):193-196.
[5]  HUANG Xiao-ming,ZHANG Jiu-peng,LIU Wei-min.Prediction of Indirect Tensile Fatigue Life of Asphalt Mixture by Means of Viscoelastic Theory[J].Journal of South China University of Technology:Natural Science Edition,2008,36(6):56-61.
[6]  GUAN Hong-xin.A Research on Viscoelastic Fatigue Damage Model of Asphalt Mixture[D].Changsha:Central South University,2005.
[7]  CHEN Zhi-ping,JIANG Jia-ling,CHEN Ling.Research on Fatigue-creep Interaction Damage of Steel 1.25Cr0.5Mo[J].Acta Metallurgica Sinica,2007,43(6):637-642.
[8]  JIANG Jia-ling,CHEN Ling,FAN Zhi-chao,et al.Discussion of Life Prediction for Fatigue-creep Interaction[J].Chinese Journal of Materials Research,2007,21(5):537-541.
[9]  LIU Li-xin.Theory of Viscoelastic Mechanics and Material Science of Asphalt Mixture[M].Beijing:China Communications Press,2006.
[10]  YANG Ting-qing.Viscoelastic Mechanics[M].Wuhan:Huazhong University of Science and Technology Press,1990.
[11]  YU Shou-wen,FENG Xi-qiao.Damage Mechanics[M].Beijing:Tsinghua University Press,1997.
[12]  ZHANG Xiao-ning.Viscoelastic Mechanics Theory and Its Application of Asphalt and Asphalt Mixture[M].Beijing:China Communications Press,2006.
[13]  GUO Da-zhi,REN Rui-bo.Layered Viscoelastic System Mechanics[M].Harbin:Harbin Institute of Technology Press,2001.
[14]  谢里阳,王德俊,徐 灏.疲劳损伤演化方程约束条件的探讨[J].应用力学学报,1992,9(4):66-69.
[15]  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.
[16]  张久鹏,黄晓明,马 涛.沥青混合料损伤蠕变特性及模型研究[J].岩土工程学报,2008,30(12):1867-1871.
[17]  郑健龙,吕松涛,田小革.基于蠕变试验的沥青粘弹性损伤特性[J].工程力学,2008,25(2):193-196.
[18]  黄晓明,张久鹏,刘伟民.用粘弹性理论预测沥青混合料的劈裂疲劳寿命[J].华南理工大学学报:自然科学版,2008,36(6):56-61.
[19]  KIM Y R,BAEK C,UNDERWOOD B S,et al.Application of Viscoelastic Continuum Damage Model Based Finite Element Analysis to Predict the Fatigue Performance of Asphalt Pavements[J].KSCE Journal of Civil Engineering,2008,12(2):109-120.
[20]  关宏信.沥青混合料粘弹性疲劳损伤模型研究[D].长沙:中南大学,2005.
[21]  陈志平,蒋家羚,陈 凌.1.25Cr0.5Mo钢疲劳-蠕变交互作用的损伤研究[J].金属学报,2007,43(6):637-642.
[22]  蒋家羚,陈 凌,范志超,等.疲劳-蠕变交互作用的寿命预测探讨[J].材料研究学报,2007,21(5):537-541.
[23]  刘立新.沥青混合料粘弹性力学及材料学原理[M].北京:人民交通出版社,2006.
[24]  杨挺青.粘弹性力学[M].武汉:华中理工大学出版社,1990.
[25]  余寿文,冯西桥.损伤力学[M].北京:清华大学出版社,1997.
[26]  张肖宁.沥青与沥青混合料的粘弹力学原理及应用[M].北京:人民交通出版社,2006.
[27]  郭大智,任瑞波.层状粘弹性体系力学[M].哈尔滨:哈尔滨工业大学出版社,2001.
[28]  DATTOMA V,GIANCANE S,NOBILE R,et al.Fatigue Life Prediction Under Variable Loading Based on a New Non-linear Continuum Damage Mechanics Model[J].International Journal of Fatigue,2006,28(2):89-95.
[29]  XIE Li-yang,WANG De-jun,XU Hao.Restraint Condition for Fatigue Damage Evolution Equation[J].Chinese Journal of Applied Mechanics,1992,9(4):66-69.

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