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Comparison of Automotive Catalytic Honeycomb Structures through Two-Dimensional Thermal Stress Analysis
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Abstract
This paper describes and compares five types of catalytic structures devised for automotive honeycomb catalytic converters, all of whose honeycomb meshes vary in shape - regular triangle, regular hexagon, square, and corrugations (types A and B).
Each honeycomb structure is analyzed as a two-dimensional frame structure, and its thermal deformation and thermal stress are discussed in comparison with those of the other types.
The analytical results are examined for differences in mechanical properties, the effects of the outer cover and of the wire mesh support, the development of cracks, etc.
Further, through the use of simple experimental models, the paper describes how the analytical results have been proven to be correct.
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Citation
Fukuda, M. and Osada, K., "Comparison of Automotive Catalytic Honeycomb Structures through Two-Dimensional Thermal Stress Analysis," SAE Technical Paper 750872, 1975, https://doi.org/10.4271/750872.Also In
References
- Harned J. L. Montgomery D. L. “Comparison of Catalytic Substrates for Catalytic Converter System.” Paper 730561 SAE Automobile Engineering Meeting Detroit May 1973
- Howitt J. S. Sekella T. C. “Flow Effects in Monolithic Automotive Catalytic Converter.” Paper 740244 SAE Automotive Engineering Congress Detroit February 1974
- Gulati S. T. “Effects of Cell Geometry on Thermal Shock Resistance of Catalytic Monoliths.” Paper 750171 SAE Automobile Engineering Congress and Exposition Detroit February 1975
- Logcher R. D. et al. “ICES STRUDL Engineering User's Manual.” M.I.T. November 1968