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| Study of mechanical behavior and constitutive relation of carbon nanotube reinforced fluororubber at high temperature |
| Received:November 07, 2022 Revised:December 19, 2022 |
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| DOI：10.7511/jslx20221107002 |
| KeyWord:carbon nanotube reinforced fluororubber temperature effects hyperelastic constitutive model mechanical behavior uniaxial tensile |
| Author | Institution |
| 左彦江 |
陕西科技大学 机电工程学院, 西安 |
| 王柱 |
陕西科技大学 机电工程学院, 西安 |
| 王俊璞 |
陕西科技大学 机电工程学院, 西安 ;西安交通大学 机械结构强度与振动国家重点实验室, 西安 |
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| Abstract: |
| Modified fluororubber is widely used in automobile engineering,aerospace engineering,national defense and other fields because of its excellent oil resistance,high temperature resistance and other good physical properties.In this paper,the uniaxial tensile test data of [JP]carbon nanotube-reinforced fluororubber at different temperatures (120 ℃~220 ℃) are analyzed,and the characteristics of the mechanical behavior of modified fluororubber with temperature are obtained.Through constitutive model evaluation and material parameter fitting, a temperature-dependent constitutive equation [JP]suitable for modified fluororubber is derived.Finally,the test results of the uniaxial tensile test at a specific temperature are compared with the prediction results of the model,which proves that the improved Yeoh model can describe the mechanical properties of carbon nanotube-reinforced fluororubber during the test temperature range.The conclusions provide the theoretical basis for engineering applications of modified fluororubber at high temperature. |
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