Abstract:
The fatigue damage properties of 0
0 single2ply and ±20
0 double-ply rubber composite under T-T loading were studied. The results show that the variation of the cycle strain of both kinds of material in the fatigue process exhibits three stages which are corresponding to damage initiation , steady damage propagation and catastrophic failure. Thefatigue damage is controlled by cord properties for the single-ply rubber composites and by matrix properties for the doubleply rubber composite respectively. The logarithmic fatigue life expressed by maximum stress follows a linear trend. Thehysteretic loss keeps constant until the end of the fatigue life. The difference between hysteretic loss and the thermoconductivity results in a difference in the surface temperature between different specimens.