This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Thermal Fatigue Life Prediction for Stainless Steel Exhaust Manifold
Annotation ability available
Sector:
Language:
English
Abstract
This paper describes the application of a life prediction method for stainless steel exhaust manifolds. Examination of the exhaust manifold cracks indicated that many of the failures could be attributed to out-of-phase thermal fatigue due to compressive strains that occur at high temperatures. Therefore, the plastic strain range was used as the crack initiation criteria. In addition, the comparison of the calculated thermal fatigue stress-strain hysteresis to the experimental hysteresis made it clear that it was essential to use the stress-strain data that was obtained through tensile and compression testing by keeping the test specimens at the maximum temperature of the thermal fatigue test mode. A finite element crack prediction method was developed using the aforementioned material data and good results were obtained.
Recommended Content
Technical Paper | Thermal Fatigue Life of Exhaust Manifolds Predicted by Simulation |
Technical Paper | Exhaust Manifold Thermo-Structural Simulation Methodology |
Technical Paper | Development of P/M Titanium Engine Valves |
Authors
Citation
Watanabe, Y., Shiratani, K., Iwanaga, S., and Nishino, K., "Thermal Fatigue Life Prediction for Stainless Steel Exhaust Manifold," SAE Technical Paper 980841, 1998, https://doi.org/10.4271/980841.Also In
References
- Noguchi Toshiharu et al “Thermal Analysis of Exhaust Manifold” JSAE 30 96 101 1985
- Ando Satoshi et al “Analysis for Thermal Stress in Exhaust Manifold” JSAE, Spring Papers, No.9433876 89 92 1994
- Oku Manabu et al “Thermal Fatigue Properties and High Temperature Properties of Ferritic Stainless Steels for Exhaust Manifold” CAMP - ISIJ 4 1792 1795 1991
- Ohtani Ryuich “Problems of High -Temperature Strength related to Thermal Fatigue” SCIENCE OF MACHINE 44 11 1 6 1992
- Kitamura Takayuki et al “Effect of Compression-Going Strain Rate on Initiation and Growth of Small Cracks under Creep-Fatigue Condition” JSAE-A 56 523 575 581 1990
- Kitamura Takayuki et al “Initiation, Growth and Heading of Small Inner Cracks under Creep-Fatigue Conditions” JSME-A 59 566 22 28 1993