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Frequency- and strain-amplitude-dependent dynamical mechanical properties and hysteresis loss of CB-filled vulcanized natural rubber
來源:羅文波教授個人網(wǎng)站 發(fā)布日期:2010-02-21
作者:Wenbo Luo, Xiaoling Hu, Chuhong Wang and Qifu Li
關(guān)鍵字:Carbon-black-filled rubber; Hysteresis loss; Loss modulus; Payne effect; Strain amplitude; Frequency
論文來源:期刊
具體來源:International Journal of Mechanical Sciences, 2010,52(2):168-174
發(fā)表時間:2010年

The dynamic mechanical behavior of carbon-black-filled vulcanized natural rubber is experimentally investigated by stretching the rubber strips with various strain amplitudes at different frequencies in a sinusoidal tension mode. The Payne effect is demonstrated and the frequency- and strain-amplitude-dependent hysteresis losses are determined by DMA measurements. The Kraus model is used for describing the Payne effect. The results show that hysteresis loss increases with increase in frequency and strain amplitude. A viscoelastic model, which correlates the hysteresis loss with strain amplitude and loss modulus, is used to calculate the energy dissipated in a full deformation cycle. The model prediction is shown to be in good agreement with the experimental result.

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