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Pavement damage model incorporating vehicle dynamics and a 3D pavement surface
Alternative Title
Pavement Damage Model Incorporating Vehicle Dynamics and a 3-Dimensional Pavement Profile
Author(s)
Date Issued
2012-02-16
Date Available
2015-09-17T15:25:17Z
Abstract
This paper proposes a mechanistic-empirical pavement damage model to predict changes in 3D road profiles due to dynamic axle loads. The traffic is represented by a fleet of quarter cars which allows for statistical variability in model parameters such as velocity, suspension stiffness, suspension damping, sprung mass, unsprung mass and tyre stiffness. The fleet model generates statistical distributions of dynamic force at each point which are used to predict pavement damage. As the pavement deteriorates, the distributions of dynamic axle force are changed by the changing road profile. This paper introduces a 3D approach – the transverse position of the wheel is represented by a Laplace probability distribution. This influences the extent to which the force patterns are spatially repeatable. Differences in the range of 10–30% are found between 2D and 3D predictions of pavement life.
Type of Material
Journal Article
Publisher
Taylor and Francis
Journal
International Journal of Pavement Engineering
Volume
13
Issue
4
Start Page
374
End Page
383
Language
English
Status of Item
Peer reviewed
This item is made available under a Creative Commons License
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