Browse > Article
http://dx.doi.org/10.3795/KSME-A.2014.38.5.505

Accelerated Life Prediction of Ethylene-Propylene Diene Monomer Rubber Subjected to Combined Degradation  

Han, Seung Wook (Dept. of Mechanical Engineering, Hanyang Univ.)
Kwak, Seung Bum (Dept. of Mechanical Engineering, Hanyang Univ.)
Choi, Nak Sam (Dept. of Mechanical Engineering, Hanyang Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.38, no.5, 2014 , pp. 505-511 More about this Journal
Abstract
The EPDM(ethylene-propylene diene monomer) rubbers used for manufacturing engine radiator hoses can be degraded by locally generated electrical stress in addition to thermal and mechanical stresses. This study presents an accelerated life prediction of the EPDM rubber under electrochemical stresses using the Arrhenius formula under various aging temperatures($60^{\circ}C$, $80^{\circ}C$, and $100^{\circ}C$). The modified life prediction formula considers the relationship between the gradient($E_a/R$) and the Arrhenius constant(C). The effects of tensile strain(5%, 10%) on the life of these rubbers were investigated. The aging temperature influences EPDM rubber life, and tensile strain was predicted. It was confirmed that the modified life prediction was within the data deviation level of the test.
Keywords
Electro-Chemical Degradation; Arrhenius Formula; Accelerated-Life Evaluation; EPDM Rubber; Mechanical Strain;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Woo, C. S. and Choi, S. S., 2005, "Effects of Thermal Aging on Properties and Life-Time Prediction of NBR and EPDM Vulcanizates," Elastomer, Vol. 40, No. 2, pp. 119-127.   과학기술학회마을
2 Brown, R. P., 1996, "Physical Testing of Rubber," 3rd, Chapman & Hall.
3 Brown, R. P., 2001, "Practical Guide to the Assessment of the Useful life of Rubbers," Rapra Technology.
4 Kim, W. D., Kim, W. S., Woo, C. S. and Cho, S. J., 2002, "Prediction of Useful Life by Heat Aging of Motor Fan Isolating Rubber," Elastomer, Vol. 37, No. 2, pp. 107-114.   과학기술학회마을
5 Lee, S. H., Park, J. H. and Kim, G. S., 2008, "Prediction of Service Life of Rubber Fender," Journal of the applied reliability, Vol. 8, No. 2, pp. 87-100.   과학기술학회마을
6 Park, D. K., 2010, "A Study for Life Prediction of the NR Rubber Railpad Based on Degradation Mechanism," Doctorate Thesis, Korea University Graduate school, Seoul.
7 Kwak, S. B., Choi, N. S. and Shin, S. M., 2013, "Electrochemical Combined-Stress Degradation Test and Failure Mechanisms of EPDM Rubber for Automotive Radiator Hoses," Trans. Korean Soc. Mech. Eng. A, Vol. 37, No. 1, pp. 1-8.   과학기술학회마을   DOI   ScienceOn
8 Kim, W. D., Nah, C. W., Koh, S. K. and Lee, S. B., 2004, "Development of Integrated Design System for Mechanical Rubber Components," Ministry of Science and Technology.