Abstract
AbstractIn this study, a rubber dumbbell cylindrical tube specimen is used as an example to study the effect of cerium oxide on the multiaxial fatigue life of vulcanized natural rubber (rb) under different strain amplitudes and different loading paths. The cracking energy density (CED), strain energy density (SED), Smith–Watson–Topper (SWT), Chen–Xu–Huang (CXH), and Fatemi–Socie fatigue life prediction models were used to evaluate the experimental data. The results show that the multiaxial fatigue life of the specimen increases with decreasing strain amplitude, the loading path has a significant influence on the life of rb, the SWT model and the CXH model have good prediction results for both materials, and the filling of cerium oxide can improve the fatigue resistance of vulcanized natural rubber.
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