| Lifetime Prediction of EPDM O-ring |
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| DOI： |
| Key Words: EPDM;O-ring;lifetime prediction |
| Author Name | Affiliation | | ZHANG Kai | Institute of System Engineering,China Academy of Engineering Physics | | MA Yan | Institute of System Engineering,China Academy of Engineering Physics | | YI Zhi-yong | Institute of System Engineering,China Academy of Engineering Physics | | WU Ju-ying | Institute of System Engineering,China Academy of Engineering Physics |
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| Abstract: |
| In this study,the accelerated ageing test of EPDM O-ring was carried out using typical sealing fixture based on actual packaging structure.The change trends of compression set of O-ring at different ageing temperature (65,85 and 105 ℃) and different ageing time (5,10,15,20,25 and 30 d) were investigated.Through mathematical regression,the relationship between the time to failure and application temperature were obtained,and the predicated lifetime of EPDM O-ring was 17.8 years.Moreover,the predicted curve was in good accordance with the experimental curve and the correlation coefficient was greater than 0.95. |
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