A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Enhanced model for thermally induced transverse cracking of asphalt pavements
Highlights Finite element model was proposed to calculate the thermally induced J-integral at the tip of crack. Artificial neural network model was developed to facilitate the prediction of J-integral. Thermal cracking fatigue life was computed based on the generalized Paris’ law viscoelastic fracture mechanics. Calculated thermal cracking fatigue life was well correlated with LTPP thermal cracking performance over time.
Abstract Thermal cracking is a non-load associated distress mode of asphalt pavements. Finite element models (FEM) were first introduced in this study to determine the thermally induced J-integral at the tip of thermal crack. After extensive runs of the FEM, artificial neural network models were constructed to predict the J-integral, which was used in the Paris’ law to calculate the cumulative thermal crack growth over time and thermal cracking fatigue life. Additionally, Long-term pavement performance data was collected to characterize the thermal cracking in different climatic zones. The calculated fatigue life was well correlated with the observed transverse cracking field performance.
Enhanced model for thermally induced transverse cracking of asphalt pavements
Highlights Finite element model was proposed to calculate the thermally induced J-integral at the tip of crack. Artificial neural network model was developed to facilitate the prediction of J-integral. Thermal cracking fatigue life was computed based on the generalized Paris’ law viscoelastic fracture mechanics. Calculated thermal cracking fatigue life was well correlated with LTPP thermal cracking performance over time.
Abstract Thermal cracking is a non-load associated distress mode of asphalt pavements. Finite element models (FEM) were first introduced in this study to determine the thermally induced J-integral at the tip of thermal crack. After extensive runs of the FEM, artificial neural network models were constructed to predict the J-integral, which was used in the Paris’ law to calculate the cumulative thermal crack growth over time and thermal cracking fatigue life. Additionally, Long-term pavement performance data was collected to characterize the thermal cracking in different climatic zones. The calculated fatigue life was well correlated with the observed transverse cracking field performance.
Enhanced model for thermally induced transverse cracking of asphalt pavements
Ling, Meng (author) / Chen, Yu (author) / Hu, Sheng (author) / Luo, Xue (author) / Lytton, Robert L. (author)
Construction and Building Materials ; 206 ; 130-139
2019-01-27
10 pages
Article (Journal)
Electronic Resource
English
Enhanced model for thermally induced transverse cracking of asphalt pavements
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