Strain Amplitude Effect on the Viscoelastic Mechanics of Chloroprene Rubber
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This paper establishes an empirical formula to predict the strain amplitude effect. A viscoelastic constitutive model—the superposition of a hyperelastic model and a viscoelastic model—is constructed based on the laws of thermodynamics. The Mooney–Rivlin model and the Prony series are employed for uniaxial tension testing. The empirical formula is derived using a hysteresis loop; it obtains results that are in agreement with the experimental results of dynamic mechanical analysis (DMA). The empirical formula proposed in this paper has certain accuracy in predicting the dynamic modulus under different strain amplitudes.
KeywordsViscoelasticity Strain amplitude effect Storage modulus Loss modulus Hysteresis loop
The project was financially supported by the National Natural Science Foundation of China (No. 51708433) and the Fundamental Research Funds. We would like to thank Editage (www.editage.cn) for English language editing.
- 11.Kraus G. Mechanical losses in carbon-black-filled rubbers. J Appl Polym Symp. 1984;39:75–92.Google Scholar
- 21.Ismail H, Osman H, Ariffin A. Curing characteristics, fatigue and hysteresis behaviour of feldspar filled natural rubber vulcanizates. J Macromol Sci Part D Rev Polym Process. 2007;46(6):6.Google Scholar