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| Constitutive Modeling of FM-2D Rubber Materials Subject to Hot Air Aging |
| Received:November 15, 2023 Revised:December 12, 2023 |
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| DOI：10.7643/issn.1672-9242.2023.12.010 |
| KeyWord:rubber hyperelasticity hot air aging mechanical response constitutive model strain tensor |
| Author | Institution |
| CHEN Jie |
School of Aeronautics, Northwestern Polytechnical University, Xi'an , China |
| LI Biao |
School of Aeronautics, Northwestern Polytechnical University, Xi'an , China |
| TANG Qing-yun |
Electronic Fifth Institute of the Ministry of Industry and Information Technology, Guangzhou , China |
| ZHANG Teng |
School of Aeronautical Engineering, Air Force Engineering University, Xi’an , China |
| LI Ya-zhi |
School of Aeronautics, Northwestern Polytechnical University, Xi'an , China |
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| Abstract: |
| This study aims to establish a constitutive model for rubber materials undergoing hot air aging, emphasizing the development of a mechanical response analysis method applicable for assessing the service life of rubber seals. Employing the finite deformation theory within the framework of continuous mechanics, the method incorporates the thermodynamic dissipation potential function. The potential energy function representing the rubber aging process is introduced, leading to the formulation of a hyperelastic constitutive model that accounts for the effects of rubber material aging. To validate the model, rubber aging tests were conducted, and the model parameters were calibrated based on the experimental results. Application of the developed constitutive model to FM-2D rubber material demonstrated its efficacy in accurately predicting the evolution of mechanical responses under conditions of hot air aging. This model serves as a valuable tool for evaluating the durability of rubber seals and contributes to a more comprehensive understanding of the aging dynamics in rubber materials. |
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