Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Research on Propagation and Fatigue Life of Asphalt Pavement Surface Crack
Focusing on the severity of asphalt pavement surface crack, a finite element analysis model of 20-node isoparametric elements was established with the commerce FEM software ABAQUS based on fracture mechanics theory. The surface crack of pavement was numerical analyzed and the crack propagation life was evaluated by Paris formula. In the course of surface crack propagation the change of the stress intensity factor () was discussed and the effect of pavement parameters on surface crack fatigue life was studied. The analysis indicates: (1) the propagation of surface crack is dominated by deflection load. In the course of crack propagation, at first increases to the top then drops down slowly; (2) the important influence factors to the surface crack propagation life at the scope of road structure parameters are thickness and modulus of surface course, and the modulus of base course. But modulus of subgrade, thickness and modulus of subbase and thickness of base course are of no effect.
Research on Propagation and Fatigue Life of Asphalt Pavement Surface Crack
Focusing on the severity of asphalt pavement surface crack, a finite element analysis model of 20-node isoparametric elements was established with the commerce FEM software ABAQUS based on fracture mechanics theory. The surface crack of pavement was numerical analyzed and the crack propagation life was evaluated by Paris formula. In the course of surface crack propagation the change of the stress intensity factor () was discussed and the effect of pavement parameters on surface crack fatigue life was studied. The analysis indicates: (1) the propagation of surface crack is dominated by deflection load. In the course of crack propagation, at first increases to the top then drops down slowly; (2) the important influence factors to the surface crack propagation life at the scope of road structure parameters are thickness and modulus of surface course, and the modulus of base course. But modulus of subgrade, thickness and modulus of subbase and thickness of base course are of no effect.
Research on Propagation and Fatigue Life of Asphalt Pavement Surface Crack
Wang, Hong-chang (Autor:in) / Li, Guo-fen (Autor:in) / Huang, Xiao-ming (Autor:in)
16.06.2008
52008-01-01 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Numerical Analysis on Propagation and Fatigue Life of Asphalt Pavement Surface Crack
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