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Analysis of the Effect of Stress Intensity Factors on Temperature-Shrinkage Reflective Cracks
A 6-parameter generalized Maxwell model is established considering the viscoelasticity of the asphalt mixture, using the second phase of the reconstruction of the East Ring Road of the existing motorway in Nanning, Guangxi as the engineering background. ABAQUS software is used to analyse the changes in stress intensity factor at the tip of temperature-shrinkage reflective cracks under the changes in initial temperature, temperature drop range, temperature drop rate, pavement structure layer, interlayer contact state and crack length. The results show that the stress intensity factor for the same relaxation time gradually decreases as the initial temperature increases, and the relaxation curve gradually slows down; the stress intensity factor for the same relaxation time gradually increases with the increase of the cooling rate of the road surface, and the relaxation curve gradually slows down; there is a positive correlation between the length of the reflective cracks and the stress intensity factor under the same relaxation time condition; there is a positive correlation between the stress intensity factor, the cooling rate of the road surface and the length of the reflective cracks under the same relaxation time condition.
Analysis of the Effect of Stress Intensity Factors on Temperature-Shrinkage Reflective Cracks
A 6-parameter generalized Maxwell model is established considering the viscoelasticity of the asphalt mixture, using the second phase of the reconstruction of the East Ring Road of the existing motorway in Nanning, Guangxi as the engineering background. ABAQUS software is used to analyse the changes in stress intensity factor at the tip of temperature-shrinkage reflective cracks under the changes in initial temperature, temperature drop range, temperature drop rate, pavement structure layer, interlayer contact state and crack length. The results show that the stress intensity factor for the same relaxation time gradually decreases as the initial temperature increases, and the relaxation curve gradually slows down; the stress intensity factor for the same relaxation time gradually increases with the increase of the cooling rate of the road surface, and the relaxation curve gradually slows down; there is a positive correlation between the length of the reflective cracks and the stress intensity factor under the same relaxation time condition; there is a positive correlation between the stress intensity factor, the cooling rate of the road surface and the length of the reflective cracks under the same relaxation time condition.
Analysis of the Effect of Stress Intensity Factors on Temperature-Shrinkage Reflective Cracks
Lecture Notes in Civil Engineering
Guo, Wei (Herausgeber:in) / Qian, Kai (Herausgeber:in) / Huang, Qinshou (Autor:in)
International Conference on Green Building, Civil Engineering and Smart City ; 2022 ; Guilin, China
08.09.2022
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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