全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

沥青混合料虚拟单轴蠕变试验方法

, PP. 13-18

Keywords: 道路工程,沥青混合料,单轴蠕变,虚拟试验,变形

Full-Text   Cite this paper   Add to My Lib

Abstract:

为了更为准确地预测混合料的变形,验证虚拟单轴蠕变试验方法的可行性,选用不同粗细级配的沥青混合料,利用X-rayCT扫描无损沥青混合料试件,获取其内部结构(集料、砂胶和空隙)精细分布信息;根据三维重构理论和开发的重构算法,构建基于真实细观尺度分布的沥青混合料三维虚拟试样;基于沥青砂胶的Burgers黏弹本构关系,根据Boltzmann线性叠加原理和Laplace数学理论,将沥青砂胶的黏弹特性转换为有限元软件可识别的Prony参数,进行虚拟单轴蠕变试验。结果表明预测的变形结果与实测变形结果非常吻合。虚拟单轴蠕变试验方法真实反映了不同混合料级配的不同变形特性,克服了传统基于均质体模型进行数值模拟的缺陷,实现了沥青混合料单轴蠕变试验的初步仿真。

References

[1]  沈金安. 沥青及沥青混合料路用性能[M]. 北京:人民交通出版社, 2001. SHENG Jin-an. Asphalt and Asphalt Mixture Performance[M]. Beijing:China Communications Press, 2001.
[2]  GARBOCZI E J. Three-dimensional Mathematical Analysis of Particle Shape Using X-ray Tomography and Spherical Harmonics: Application to Aggregates Used In Concrete[J].Cement and Concrete Research, 2002, 32 (10): 1621-1638.
[3]  WAN Cheng, ZHANG Xiao-ning, WANG Lin-bing, et al. Three-dimensional Micromechanical Finite Element Analysis on Gauge Length Dependency of Dynamic Modulus of Asphalt Mixtures[J]. Road Materials and Pavements Design, 2012, 13(4): 769-783.
[4]  COLLOP A C, SCARPAS A T, KASBERGEN C, et al. Development and finite Element Implementation of a Stress Dependent Elasto-Visco-Plastic Constitutive Model with Damage for asphalt[C]//Transportation Research Board 82th Annual Meeting. Washington, D. C.: TRB, 2003:179-185.
[5]  ROBERT F L, MOHAMMAD L N, WANG L B. History of Hot Mix Asphalt Mixture Design in the United States[J]. Journal of Materials in Civil Engineering, 2002, 14(4):279-293.
[6]  YOU Z P, DAI Q L. Dynamic Complex Modulus Predictions of Hot-Mix Asphalt Using A Micromechanical-Based Finite Element Model[J] Canadian Journal of Civil Engineering, 2007, 34(12):1519-1528.
[7]  DAI Q L. Prediction of Dynamic Modulus and Phase Angle of Stone-Based Composites Using A Micromechanical Finite-Element Approach[J]. Journal of Materials in Civil Engineering, 2010, 22(6):618-627.
[8]  YOU Z P, LIU Y, DAI Q L. Three-dimensional Microstructural-based Discrete Element Viscoelastic Modeling of Creep Compliance Tests for Asphalt Mixtures [J]. Journal of Materials in Civil Engineering, 2011, 23(1): 79-87.
[9]  虞将苗, 李晓军, 王端宜, 等. 基于计算机层析识别的沥青混合料有限元模型[J]. 长安大学学报:自然科学版, 2006, 26(1): 16-19. YU Jiang-miao, LI Xiao-jun, WANG Duan-yi, et al. Finite Element Modeling of Asphalt Mix With X-Ray Computerized Tomography Processing[J]. Journal of Chang'an University: Natural Science Edition, 2006, 26(1): 16-19.
[10]  CHEN Ye-kai, YU Jiang-miao, ZHANG Xiao-ning. Micromechanical Analysis of Damage Evolution In Splitting Test of Asphalt Mixtures[J]. Journal of Central South University of Technology, 2010, 17(3):628-634.
[11]  ZHANG X N, WAN C, WANG D, et al. Numerical Simulation of Asphalt Mixture Based on Three-Dimensional Heterogeneous Specimen [J]. Journal of Central South University of Technology, 2011, 18(6): 2201-2206.
[12]  张肖宁. 设计沥青混合料[J]. 哈尔滨建筑大学学报, 2002, 35(1):108-112. ZHANG Xiao-ning. Designing Asphalt Mixture[J]. Journal of Harbin University of Civil Engineering and Architecture, 2002, 35(1):108-112.
[13]  张肖宁, 郭组辛, 王绍怀. 按体积法设计沥青混合料[J]. 哈尔滨建筑大学学报, 1995, 4(2):28-26. ZHANG Xiao-ning, GUO Zu-xin, WANG Shao-huai. Volume Method of Bituminous Mixture Design[J]. Journal of Harbin University of Civil Engineering and Architecture, 1995, 4(2):28-26.
[14]  葛折圣, 张肖宁, 高俊合. 富沥青混合料设计方法的改进[J]. 公路交通科技, 2007, 24(11):48-50, 54. GE Zhe-sheng, ZHANG Xiao-ning, GAO Jun-he. Improvement of FAC Designing Method[J]. Journal of Highway and Transportation Research and Development, 2007, 24(11):48-50, 54.
[15]  万成, 张肖宁, 王绍怀, 等. 基于X-CT技术的沥青混合料三维数值化试样重建[J]. 公路交通科技, 2010, 27(11):33-37, 42. WAN Cheng, ZHANG Xiao-ning, WANG Shao-huai, et al. Reconstruction of 3D Digital Specimen of Asphalt Mixture Based on X-CT Technology[J]. Journal of Highway and Transportation Research and Development, 2010, 27(11):34-37, 42.
[16]  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. ZHANG Xiao-ning. Viscoelastic Principle and Application of Asphalt and Asphalt Mixture[M]. Beijing:China Communications Press, 2006.
[17]  杨挺青, 罗文波, 徐平, 等. 粘弹性理论与应用[M]. 北京: 科学出版社, 2004. YANG Ting-qing, LUO Wen-bo, XU Ping. Theory and Application of Viscoelastic Theory[M]. Beijing:Science Press, 2004.
[18]  ROBERTO F S.Finite Element Analysis of the Mechanics of Viscoelastic Asphaltic Pavement Subjected to Varying Tire Configurations[D]. Lincoln: University of Nebraska, 2005:48-92.
[19]  PARK S W, KIM Y R. Fitting Prony-Series Viscoelastic Models with Power-Law Presmoothing[J]. Journal of Materials in Civil Engineering, 2001, 13(1): 26-32.
[20]  YOU Z P, ADHIKARI S, KUTAY M. Dynamic Modulus Simulation of the Asphalt Concrete using the X-ray Computed Tomography Images[J]. Materials and Structures, 2009, 42(5):617-630.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133