Tension buckling in rubber bearings affected by cavitation

In this paper an analytical formulation to predict the instability of a rubber bearing affected by cavitation is elaborated. A procedure to calculate buckling load in tension in the presence of cavitation is developed for both long strip bearings and circular bearings. The analysis is conducted by using an analytical model that describes the effects of cavitation on both compressive and bending stiffness of rubber bearings used for antiseismic purposes.