The Impact of Road Construction Materials Dynamic Modulus Parameters on Road Surface Shearing Stress

Abstract:

At the beginning,we used the ABAQUS to establish a two-dimensional finite element model of typical asphalt pavement, and analysised the changing axiom of road surface shearing stress under the half sine wave load. Also, we studied on the impact of damping ratio and the driving speed on shearing stress. Finally, by using SPSS13.0 software to compare the impact of speed, the surface layer material damping ratio, lower modulus ratio, the thickness of the surface layer and the thickness of the subbase. The results show that, to reduce the cracking damage caused by oversized shearing stress in asphalt pavement, we should first consider the damping ratio of surface layer material, and the most effective method is to use the road-building material of high damping ratio to prevent cracks, at the same time we should raise the driving speed.

• Periodical: Applied Mechanics and Materials (Volumes 178-181)
• Pages: 1183-1187
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.178-181.1183
• Online since: May 2012
• Authors: Er Yong Chuo, De Qun Wang, Guo Rui Deng
• Keywords: Damping Ratio, Finite Element Model (FEM), Half Sine Wave Load, Shearing Stress, Significant Impact

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