Abstract
The uniaxial ratchetting behaviour of cerium oxide filled vulcanized natural rubber (NR) was studied by cyclic asymmetric stress-controlled experiments at room temperature. The effects of mean stress, stress amplitude, loading history and stress rate on the ratchetting strain are discussed. The results show that cerium oxide filled vulcanized NR exhibits obvious ratchetting behaviour under cyclic asymmetric loading. The ratchetting strain increases with increase of mean stress or the decrease of stress rate. In addition, the subsequent loading conditions exhibit memory of the previous loading condition, which can influence the subsequent ratchetting strain.
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