Abstract
Ecological and economic aspects induced to the evolution of tyre patches, that could increase the work-life of the heavy duty tyres. This technical solution permits to repair, with an important reliability, different broken wires of the tyre wall. The tyre repair is an extremely delicate and accurate process, that needs careful analysis. With this work, the behaviour of some tyre patches, that have the task to compensate for the lack of structural integrity has been analysed. The possibility to follow the tyre's deformations, due to everyday working on the road stresses, of two kinds of patches has been evaluated. In particular, the thermo -mechanical behaviour has been highlighted, by means of an IR camera, that revealed extremely sensitive to the thermal superficial gradient induced by hysteresis' phenomena.
