Open AccessAsphalt Pavement Stress Intensity Analysis under Fluctuating Load
Author(s) -
Jianhong Gao
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/508/1/012217
Subject(s) - asphalt , intensity (physics) , asphalt pavement , stress (linguistics) , finite element method , stress intensity factor , structural engineering , road surface , point (geometry) , geotechnical engineering , materials science , engineering , mathematics , composite material , physics , geometry , linguistics , philosophy , quantum mechanics
The finite element software ANSYS is used to build the asphalt pavement three-dimensional model and to carry through transient analysis. The stress intensity time-history curves of asphalt pavement under the fluctuating load are obtained. The curves reveal that the pavement structure stress intensity effect of dynamic load is complex. And the point stress intensity always reaches its peak value when the load reaches this point. After the load leaves, it decreases rapidly to zero. Pavement surface is most significantly affected by load. The deeper the pavement surface is, the smaller the impact is, but the influence law remains unchanged. These conclusions can provide reference for stress intensity condition of asphalt pavement under fluctuating load.