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Road contact stresses and forces under tires with low inflation pressure

Douglas, RA, Woodward, David and Woodside, Alan (2000) Road contact stresses and forces under tires with low inflation pressure. CANADIAN JOURNAL OF CIVIL ENGINEERING, 27 (6). pp. 1248-1258. [Journal article]

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Many field trials have been undertaken to demonstrate the benefits of reducing the inflation pressure of the tires of heavily loaded haul vehicles, but few carefully controlled laboratory studies have been performed. An earlier full scale laboratory study indicated that tire inflation pressure had far less effect on subgrade strains for unpaved, single-layer granular road structures than the tire loading itself, so attention was directed to the behaviour of the granular base at the tire tread - road surface interface. In the present paper, the results of full scale tests performed using a laboratory apparatus designed to measure the dynamic vertical, transverse, and longitudinal contact forces under tires with varying loads and inflation pressures are reported. Vertical contact forces were observed to be highly non-uniform, both across and along the contact patch.

Item Type:Journal article
Keywords:central tire inflation systems; CTI; model study; haul trucks; unbound roads; unpaved roads; access roads
Faculties and Schools:Faculty of Art, Design and the Built Environment
Faculty of Art, Design and the Built Environment > School of the Built Environment
Research Institutes and Groups:Built Environment Research Institute
Built Environment Research Institute > Studies Allied to Built Environment Research (SABER)
ID Code:3851
Deposited By: Dr David Woodward
Deposited On:20 Oct 2010 14:02
Last Modified:19 Jan 2015 12:15

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