Abstract

An infinitely long membrane tube under lateral compression between various rigid surfaces is used as a model to illustrate the load carrying mechanism in tires. The surfaces include parallel flat plates, indentors, and surfaces which are flat and parallel except for a semicircular hump. Such configurations are relevant to deflection of tires against flat ground, the plunger test of tire behavior, and tire enveloping properties.

In the flat plate case, compression rate appreciably affects both the force‐deflection relations and strength. But even at its weakest the structure bursts only at very high deflection. In the indentor case, burst cannot occur unless the initial pressure exceeds a value dependent on the indentor radius to which behavior is otherwise insensitive. Regarding envelopment, the magnitude of the disturbance due to the presence of a hump increases with decreasing tube inflation pressure.

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