Browse > Article

Numerical Prediction of Permanent Deformation of Automotive Weather Strip  

Park, Joon-Chul (Polymeric Materials Research Team, Advanced Technology Center R&D Division for Hyundai Kia Motors Department of Mechanical Engineering)
Min, Byung-Kwon (Polymeric Materials Research Team, Advanced Technology Center R&D Division for Hyundai Kia Motors Department of Mechanical Engineering)
Oh, Jeong-Seok (Polymeric Materials Research Team, Advanced Technology Center R&D Division for Hyundai Kia Motors Department of Mechanical Engineering)
Moon, Hyung-Il (Department of Mechanical and Mechatronics Engineering, Kangwon National University)
Kim, Heon-Young (Department of Mechanical and Mechatronics Engineering, Kangwon National University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.18, no.4, 2010 , pp. 121-126 More about this Journal
Abstract
The automotive weather strip has functions of isolating of water, dust, noise and vibration from outside. To achieve good sealing performance, weather strip should be designed to have the high contact force and wide contact area. However, these design causes excessive permanent deformation of weather strip. The causes of permanent deformation is generally explained to be the chemical material detrioration and physical variation and cyclic loading, etc. This paper introduces a numerical method to predict the permanent deformation using the time dependent viscoelastic model which is represented by Prony series in ABAQUS. Uniaxial tension and creep tests were conducted to obtain the material data. And the lab. test for the permanent deformation was accelerated during shorter time, 300 hours. The permanent deformation of weather strip was successfully predicted under the different loading conditions and different section shapes using the suggested numerical process.
Keywords
Permanent deformation; Weather strip; Viscoelastic; Creep; Prony series; Finite element analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 H. Y. Kim, J. J. Kim and N. K. Lee, "Deformation Analysis and Shape Optimization for Automotive Engine Mounting Rubber," Transactions of KSAE, Vol.7, No.4, pp.347-360, 1999.
2 OriginLab, Origin Reference V8, OriginLab Corporation, Miami, 2007.
3 A. Dorfmann and R. W. Ogden, "A Constitutive Model for the Mullins Effect with Permanent Set in Particle-reinforced Rubber," IJSS, Vol.41 pp.1855-1878, 2004.
4 A. Mostafa, A. Abouel-Kasem, M. R. Bayoumi and M. G. EI-Sebaie, "On the Influence of CB Loading on the Creep and Relaxation Behavior of SBR and NBR Rubber Vulcanizaters," Materials & Design, Vol.30, Issue 7, pp.2721-2725, 2009.   DOI
5 D. A. Wagner, H. N. Morman Jr, Y. Gur and M. R. Koka, "Nonlinear Analysis of Automotive Door Weatherstrip Seals," Finite Element in Analysis and Design, Vol.28, pp.33-55, 1997.   DOI   ScienceOn
6 ABAQUS 6.7 Theory Manual.
7 S. B. Seo, "Introduction of Rubber Behavior for structure analysis," Transaction of KSR, Vol.8, No.2, pp.50-62, 2005.
8 K. H. Yoon and B. K. Yu, "An Experimental Study on the Viscoelastic Coefficient of Polystyrene," Autumn Conference of KSME, Vol.1, No.1, pp.751-754, 2000.
9 J. D. Ferry, Viscoelastic Properties of Polymers, John Wiley & Sons, New York, 1980.
10 H. I. Moon, B. K. Min, J. S. Oh, J. C. Park, S. H. Lee and H. Y. Kim, "Prediction of Door Closing Performance," Fall Conference Proceedings, KSAE, pp.1678-1683, 2008.
11 S. Park, S. Y. Lee and E. Kang, "Sealing Performance Prediction of Thermoplastic Rubber Component using Non-Linear Large Deformation F.E.M.," Autumn Conference of KSME, Vol.A, pp.669-673, 2001.
12 H. Y. Kim, J. Y. Choi and J. C. Shim, "Nonlinear Finite Element Analysis for the Shape Design of Automotive Weather Strips," Autumn Conference of KSME, pp.448-455, 1997.
13 K. Y. Lee, S. Shin, K. H. Chung, T. H. Yoon and S. Kang, "Elastic Response of Filled and Unfilled Green Rubbers," Elastomer, Vol.38, No.3, pp.273-280, 2003.   과학기술학회마을
14 C. S. Woo, W. D. Kim and S. S. Choi, "Material Characteries Evaluation and Useful Life Prediction by Heating Aging of Rubber Materials for Electronic Component," Spring Conference of KSME, pp.130-135, 2005.