The development of analytical techniques for evaluation and analysis of performance of tyres on soft ground, requires the properties of the tyres for accurate prediction of tyre-ground interaction. This study addresses the problem of prediction of tyre-soil performance by considering the interaction between tyre and soil in terms of energetics - i.e. the mechanics of energy transfer. If a proper analysis of participating components in a tyre-soil interacting problem is to be made - on the basis of the mechanics of energy transfer, i.e. conservation of energy - it then becomes necessary to provide a means for evaluation of load-deformation and elastic properties of the tyres. In this study, three model tyres have been tested to determine properties relating to carcass stiffness and contact area development on rigid pavement, and stiff and soft soils. The contact areas developed for the tyres examined are evaluated with respect to the carcass stiffnesses of the tyres.
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