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Deformation Prediction of Asphalt Mixtures under Repeated Load Base on Viscoelastic Mechanical Model
The deformation of asphalt mixtures can be well described by a generalized Maxwell viscoelastic model, which Prony series coefficients are obtained via static creep tests of AC-13C unmodified and modified asphalt mixtures. A half-sinusoidal load with 0.1s loading duration and 0.9s unloading duration is used to simulate the dynamic vehicle load, and the strain of AC-13C unmodified and modified asphalt mixtures under repeated load is analyzed by viscoelastic finite element method, then we obtain an excellent correlation with the measured strain. The results shows that the viscoelastic finite element method together with the parameters determined by the static creep test could well predict strain of asphalt mixtures under repeated load, and these analysis could be used in permanent deformation prediction of asphalt pavement under moving loads.
Deformation Prediction of Asphalt Mixtures under Repeated Load Base on Viscoelastic Mechanical Model
The deformation of asphalt mixtures can be well described by a generalized Maxwell viscoelastic model, which Prony series coefficients are obtained via static creep tests of AC-13C unmodified and modified asphalt mixtures. A half-sinusoidal load with 0.1s loading duration and 0.9s unloading duration is used to simulate the dynamic vehicle load, and the strain of AC-13C unmodified and modified asphalt mixtures under repeated load is analyzed by viscoelastic finite element method, then we obtain an excellent correlation with the measured strain. The results shows that the viscoelastic finite element method together with the parameters determined by the static creep test could well predict strain of asphalt mixtures under repeated load, and these analysis could be used in permanent deformation prediction of asphalt pavement under moving loads.
Deformation Prediction of Asphalt Mixtures under Repeated Load Base on Viscoelastic Mechanical Model
Zhang, Li-juan (Autor:in) / Zhang, Xiao-ning (Autor:in) / Hu, Chi-chun (Autor:in)
GeoShanghai International Conference 2010 ; 2010 ; Shanghai, China
Paving Materials and Pavement Analysis ; 116-125
14.05.2010
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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