Numerical simulation of asphalt mixture based on three-dimensional heterogeneous specimen

被引：0

作者：

张肖宁 ^{[1
]}

万成 ^{[1
]}

王栋 ^{[2
]}

贺玲凤 ^{[1
]}

机构：

[1] Department of Civil and Transportation Engineering, South China University of Technology

[2] Department of Civil and Environmental Engineering, Virginia Polytechnic Institute and State University

来源：

JournalofCentralSouthUniversityofTechnology | 2011年 / 18卷 / 06期

关键词：

asphalt mixture; X-ray CT; 3D heterogeneous specimen; numerical simulation;

D O I：

暂无

中图分类号：

U414 [道路建筑材料];

学科分类号：

0805 ;

摘要：

In order to verify the validity of finite element numerical simulation method for asphalt mixture, which consists of aggregates, mastic (where mastic is a kind of fine mixture composed of asphalt binder mixed with fines and fine aggregates) and air voids, based on three-dimensional (3D) heterogeneous specimen, X-ray computerized tomography (X-ray CT) was used to scan the asphalt specimens to obtain the real internal microstructures of asphalt mixture. CT images were reconstructed to build up 3D digital specimen, and the viscoelastic properties of mastic were described with Burgers model. The uniaxial creep numerical simulations of three different levels of aggregate gradation were conducted. The simulation results agree well with the experimental results. The numerical simulation of asphalt mixture incorporated with real 3D microstructure based on finite element method is a promising application to conduct research of asphalt concrete. Additionally, this method can increase the mechanistic understanding of global viscoelastic properties of asphalt mixtures by linking the real 3D microstructure.

引用

页码：2201 / 2206

页数：6

共 9 条

[1]

Simulation of rheological behavior of asphalt mixture with lattice model[J]. 杨圣枫,杨新华,陈传尧.Journal of Central South University of Technology. 2008(S1)

[2] Stone-on-Stone Contact of Permeable Friction Course Mixtures [J].

Alvarez, Allex E. ;

Mahmoud, Enad ;

Martin, Amy Epps ;

Masad, Eyad ;

Estakhri, Cindy .

JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2010, 22 (11) :1129-1138

[3] Interactions of Granite and Asphalt Based on the Rheological Characteristics [J].

Yi-qiu, Tan ;

Li, Xiaolin ;

Zhou, Xingye .

JOURNAL OF MATERIALS IN CIVIL ENGINEERING, 2010, 22 (08) :820-825

[4] Dynamic modulus simulation of the asphalt concrete using the X-ray computed tomography images [J].

You, Zhanping ;

Adhikari, Sanjeev ;

Kutay, M. Emin .

MATERIALS AND STRUCTURES, 2009, 42 (05) :617-630

[5]

Development and Finite Element Implementation of Stress-Dependent Elastoviscoplastic Constitutive Model with Damage for Asphalt[J] . Andrew C. Collop,A. （Tom） Scarpas,Cor Kasbergen,Arian de Bondt.Transportation Research Record . 2003 (1)

[6]

Three-dimensional mathematical analysis of particle shape using X-ray tomography and spherical harmonics: Application to aggregates used in concrete[J] . E.J. Garboczi.Cement and Concrete Research . 2002 (10)

[7]

X-ray Tomography to Characterize Air Void Distribution in Superpave Gyratory Compacted Specimens[J] . Laith Tashman,Eyad Masad,John D’Angelo,John Bukowski,Thomas Harman.International Journal of Pavement Engineering . 2002 (1)

[8]

Microstructure Study of WesTrack Mixes from X-Ray Tomography Images[J] . L. B. Wang,J. D. Frost,Naga Shashidhar.Transportation Research Record . 2001 (1)

[9]

Simulation of crack propagation and failure of concrete[J] . Y. B. Zaitsev,F. H. Wittmann.Matériaux et Constructions . 1981 (5)

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