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2.3 MECHANICAL ENGINEERING, Materials engineering
The influence of equivalent replacement of silica (SiO2) by carbon nanotubes (CNT) or graphene oxide (GO) on the microstructure, mechanical and fatigue behaviors of SiO2/styrene-butadiene rubber (SBR) composites was investigated. Results showed that the synergistic effect between CNT (or GO) and SiO2 was beneficial for the filler network and improved the mechanical properties of SBR composites. Furthermore, the introduction of CNT (or GO) led to low crack growth rates and the crack propagation tips were easy to deflection. Under multiaxial fatigue conditions, the maximum engineering stress was determined to be a reliable fatigue life predictor for SBR composites.
Zongchao Xu, Stephen Jerrams, Hao Guo, Yanfen Zhou, Liang Jiang, Yangyang Gao, Liqun Zhang, Li Liu, Shipeng Wen, Influence of graphene oxide and carbon nanotubes on the fatigue properties of silica/styrene-butadiene rubber composites under uniaxial and multiaxial cyclic loading, International Journal of Fatigue, Volume 131, 2020, 105388, ISSN 0142-1123, DOI: 10.1016/j.ijfatigue.2019.105388.
National Key R&D Program of China; National Natural Science Foundation of China; National Basic Research Program of China