Abstract
We have studied, as shown in this paper, on the maximum limit of compressive strain allowable for the rubber vibration insulator, through the fatigue test under constant deflection.
Paying attention towards the direction having an angle of 25° (or more) with the bonded plane, we have tried to explain the features of the wrinkle on the surface of the compressed rubber specimen, which melts and developes into a crack during the repetition of compressive strain.
Since our first consideration in the compressive fatigue of the cylindrical rubber specimen with fillet is to be given to the prevention of the formation of this wrinkle, the choice of the maximum compressive strain should be made with due regard to the form factor and the radius of fillet of the specimen. Within the range of 0.2-1.5 of the form factor, the obtained results are as follows:
Maximum compressive strain: less than 22-7.3%, Radius of fillet (max): 1.5-3.9mm.
