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3D Dynamic Finite Element Analysis and Corresponding Vibration of Asphalt Track Considering Material Characteristics and Design Thickness of Asphalt Concrete Roadbed Under Moving Load
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 Title & Authors
3D Dynamic Finite Element Analysis and Corresponding Vibration of Asphalt Track Considering Material Characteristics and Design Thickness of Asphalt Concrete Roadbed Under Moving Load
Lee, SeongHyeok; Seo, HyunSu; Jung, WooYoung;
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 Abstract
The asphalt-concrete trackbed system has many advantages in terms of maintenance and economics. However, methods to investigate practical use corresponding to the development of the trackbed system must be developed. The primary objective of this study was to evaluate the dynamic performance of the asphalt system in accordance with both the elastic and viscoelastic material characteristics and design thickness of the asphalt trackbed. More specifically, in order to reduce the uncertainty error of the Finite Element(FE) model, a three-dimensional full scale FE model was developed and then the infinite foundation model was considered. Finally, to compare the condition of viscoelastic materials, performance evaluation of the asphalt-concrete trackbed system was used to deal with the dynamic amplification factors; numerical results using isotropic-elastic materials in the FE analysis are presented.
 Keywords
Asphalt concrete trackbed;Visco-elastic;Dynamic analysis;Infinite foundation;Dynamic amplification factor;
 Language
Korean
 Cited by
 References
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