Influence of interfacial property param of short fiber/rubber composites on fatigue behavior

For short fiber reinforced rubber composites whose interfacial properties are difficult to quantitatively characterize. In this paper, the relative modified debonding energy (RMDE) is innovatively introduced to characterize the effective interfacial layer adhesion and relative modified debonding energy decay rate (K-i) to characterize the damage of interfacial layer during the fatigue process using the tensile stress-strain curves of composites. The tear energy plateau area (TEPA) on the crack extension rate curve of the composites can reflect the composite interface characteristic parameters RMDE and K-i, and the TEPA size (T-pa) can be used to predict the fatigue life of the composite.