This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Application of Kinetics of Thermal Degradation for Time-Temperature Analysis of Automotive Components
Technical Paper
2009-01-1178
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
A fundamental problem in the development of automotive thermal protection strategies is the understanding of the effect of time and temperature on vehicle components life and their performance throughout the life of the vehicle. Due to restrictions on emissions and the stringent requirements for improved fuel economy, the use of polymers and synthetic materials has been widely adopted in automotive applications. It is therefore critical to develop a process to estimate life of engineering materials based on thermal testing and material physical properties. While a series of carefully selected vehicle tests can determine components temperatures during different testing conditions, a need still exists to determine the expected component life and performance throughout the life of the vehicle. Kinetic models have been widely used, in literature, to determine the aging of polymeric and composite materials over time. In this paper, bench test and literature data, for selected materials which are used in automotive applications, are analyzed to determine essential parameters for kinetic models of thermal degradation. The kinetic models are applied later to estimate the effect of time and temperature on the component life based on vehicle level thermal testing and the expected vehicle duty cycle.
Recommended Content
Citation
El-Sharkawy, A. and Luibrand, E., "Application of Kinetics of Thermal Degradation for Time-Temperature Analysis of Automotive Components," SAE Technical Paper 2009-01-1178, 2009, https://doi.org/10.4271/2009-01-1178.Also In
References
- Kamal, M.R. Polymer Engineering and Science 14 1 231 1979
- Kamal, M.R. Sourour, S. Polymer Engineering and Science 13 1 59 1973
- Seferis, J. C. “Aging Analyses of Polymer Composites through Time-Temperature Equivalence,” Journal of Composites Technology and Research, JCTRER 21 No. 3 July 1999 173 179
- El-sharkawy, A.E. Woronowycz, George M Luibrand, Edward A Kohler John T “Development of an Engineering Analysis Tool for Evaluation of Time-Temperature Analysis of Automotive Components,” SAE Paper #2009-011-1179
- Gillen, K. T Celina, M. Keenan, M. R. Rubber Chemical Technology 2000 73 265
- Gillen, K. T Celina, M. Bernstein, R. Polym Degrad Stab 2003 82 25
- Achenbach, M. “Service Life of Seals – Numerical simulation in Sealing technology enhances prognoses,” Computational Material Science 19 2000 213
- Müller, I. Thermodynamics, section 8: “A special Case of thermoelasticity, rubber, Pitmann, Advanced Scientific Publishing Program: Interaction Of Mechanics and Mathematics Series Boston, London Melbourne 1985
- Rivlin, R.S. Saunders, D.N. “Large Elasticity Deformations of Isotropic Materials VII: Experience on the Deformation of rubber,” Phil. Trans. Roy. Soc. London A243 1951
- Shakaaya, Bikram D “Pyrolysis of Waste Plastics to Generate Useful Fuel Containing Hydrogen Using a Solar Thermochemical Process,” MSc. Thesis March 2007
- Ngolemasango, E. F. Bennett, M. Clarke, Jane “Kinetics of the effect of ageing on tensile properties of a natural rubber compound, ” Journal of Applied Polymer Science 102 Issue 4 3732 3740
- Ngolemasango, E. F. Bennett, M. Clarkea, Jane “Degradation and Life Prediction of a Natural Rubber Engine Mount Compound, ” Journal of Applied Polymer Science 110 348 355 2008
- Gillen, K.T. Celina, M. Clough, R. L. Wise, J. “Exploration of Accelerated Aging Data-Arrehenious or Erroneous?,” Trends Poly. Sci. 5 250 1997