TY - CHAP
T1 - Multi-scale Computational Approaches for Asphalt Pavements Under Rolling Tire Load
AU - Wollny, Ines
AU - Hartung, Felix
AU - Kaliske, Michael
AU - Liu, Pengfei
AU - Oeser, Markus
AU - Wang, Dawei
AU - Canon Falla, Gustavo
AU - Leischner, Sabine
AU - Wellner, Frohmut
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2021
Y1 - 2021
N2 - An innovative consistent simulation chain is used in this chapter for the combination of the advantages of a microstructure finite element (FE) model of asphalt composites with a macrostructure FE model of pavement under tire rolling load. For this study, an existing microstructural FE model of a Stone Mastic Asphalt including coarse aggregates, asphalt mortar, and air voids was parameterized and validated beginning with experimental tests of asphalt mortar. In order to identify the macroscopic (homogenized) material properties of the asphalt mixture for use in the FE computations of two pavement structures under rolling tire load, this validated microstructural model is applied. These calculations are then evaluated using a new macro-micro-interface, which represents the rolling tire loading conditions for the microstructural model by generating time-dependent displacement boundary conditions. The results indicate that the introduced simulation chain allows for the investigation of the processes, stresses and strains inside the asphalt composite at realistic loading conditions. The experimental tests on the component level can be improved and a better comprehension of the interacting processes in asphalt mixtures under rolling tire load can be obtained by using the results.
AB - An innovative consistent simulation chain is used in this chapter for the combination of the advantages of a microstructure finite element (FE) model of asphalt composites with a macrostructure FE model of pavement under tire rolling load. For this study, an existing microstructural FE model of a Stone Mastic Asphalt including coarse aggregates, asphalt mortar, and air voids was parameterized and validated beginning with experimental tests of asphalt mortar. In order to identify the macroscopic (homogenized) material properties of the asphalt mixture for use in the FE computations of two pavement structures under rolling tire load, this validated microstructural model is applied. These calculations are then evaluated using a new macro-micro-interface, which represents the rolling tire loading conditions for the microstructural model by generating time-dependent displacement boundary conditions. The results indicate that the introduced simulation chain allows for the investigation of the processes, stresses and strains inside the asphalt composite at realistic loading conditions. The experimental tests on the component level can be improved and a better comprehension of the interacting processes in asphalt mixtures under rolling tire load can be obtained by using the results.
KW - Asphalt pavements
KW - Finite element method
KW - Macro-micro-interface
KW - Multi-scale computational approach
KW - Rolling tire load
UR - https://www.scopus.com/pages/publications/85109849805
U2 - 10.1007/978-3-030-75486-0_8
DO - 10.1007/978-3-030-75486-0_8
M3 - 章节
AN - SCOPUS:85109849805
T3 - Lecture Notes in Applied and Computational Mechanics
SP - 247
EP - 266
BT - Lecture Notes in Applied and Computational Mechanics
PB - Springer Science and Business Media Deutschland GmbH
ER -