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Title: Frictional contact behaviour of the tyre: the effect of tread slip on the in-plane structural deformation and stress field development
Authors: Tsotras, Achillefs
Mavros, George
Keywords: Transient tyre simulation
Tyre ring model
Contact pressure distribution
Tyre frictional contact
Tyre tread model
Tyre contact area
Issue Date: 2010
Publisher: © Taylor & Francis
Citation: TSOTRAS, A. and MAVROS, G., 2010. Frictional contact behaviour of the tyre: the effect of tread slip on the in-plane structural deformation and stress field development. Vehicle System Dynamics, 48 (8), pp. 891 - 921.
Abstract: The analysis of the in-plane deformation of the tyre in relation to the frictional contact between the road and the tread is a crucial first step in the understanding of its contribution to the longitudinal dynamics of a vehicle. In this work, the physical mechanism of the generation of the two-dimensional contact pressure distribution for a non-rolling tyre is studied. Towards this aim, a physical tyre model is constructed, consisting of an analytical ring under pretension, a non-linear sidewall foundation, and a discretised foundation of viscoelastic elements representing the tread. Tread behaviour is examined first, with focus on the development of shear micro-slip. The tread simulation is enhanced with the combination of radial and tangential tread elements and the benefits of such an approach are identified. Subsequently, the contact of the complete model is examined by implementing an algorithm for transient simulations in the time domain. The effects of the imposed vertical load and sidewall non-linearity on the contact stress and strain fields are identified. The modelling approach is validated by comparison with published experimental results. The physical mechanism that couples the torsional and horizontal/vertical deformations of the carcass with the frictional forces at the tread is identified and discussed in detail. The proposed modelling approach is found appropriate for the description of the development of the two-dimensional contact pressure field as a function of the frictional potential of the contact.
Description: This article was published in the journal Vehicle System Dynamics [© Taylor & Francis] and the definitive version is available at: http://dx.doi.org/10.1080/00423110903194534
Version: Accepted for publication
DOI: 10.1080/00423110903194534
URI: https://dspace.lboro.ac.uk/2134/11396
Publisher Link: http://dx.doi.org/10.1080/00423110903194534
ISSN: 0042-3114
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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