Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Theoretical analysis of overlay resisting crack propagation in old cement concrete pavement
The main purpose of this study is to determine the effect of overlay on the crack propagation. To simplify the problem, a cement concrete pavement is modelled as an elastic plate on Winkler foundation. To drive the singular integral equations, the Fourier transform and dislocation density function are used. Lobatto–Chebyshev integration formula, as a numerical method, is used to solve the singular integral equations. The numerical solution of the stress intensity factor at the crack tip is derived. To examine the effect of overlay for resisting the crack propagation, numerical analyses are carried out on a cement concrete pavement with embedded crack and a concrete pavement with an asphalt overlay. Results show that the thickness and the shear modulus are two significant factors influencing the crack propagation.
Theoretical analysis of overlay resisting crack propagation in old cement concrete pavement
The main purpose of this study is to determine the effect of overlay on the crack propagation. To simplify the problem, a cement concrete pavement is modelled as an elastic plate on Winkler foundation. To drive the singular integral equations, the Fourier transform and dislocation density function are used. Lobatto–Chebyshev integration formula, as a numerical method, is used to solve the singular integral equations. The numerical solution of the stress intensity factor at the crack tip is derived. To examine the effect of overlay for resisting the crack propagation, numerical analyses are carried out on a cement concrete pavement with embedded crack and a concrete pavement with an asphalt overlay. Results show that the thickness and the shear modulus are two significant factors influencing the crack propagation.
Theoretical analysis of overlay resisting crack propagation in old cement concrete pavement
Zhong, Yang (Autor:in) / Liu, Heng (Autor:in)
Road Materials and Pavement Design ; 15 ; 701-711
03.07.2014
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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