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Thermal Fatigue Design of Stainless Steel Exhaust Manifolds
Technical Paper
2007-01-0564
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The paper deals with the thermal mechanical fatigue (TMF) of stainless steels used for exhaust manifolds. A thermal fatigue test on V-shape specimen was early developed at Ugine & Alz to simulate such thermal and mechanical conditions. The examination of failed specimens indicates that cracks could be generally attributed to out-of-phase TMF. However, in specific cases, in-phase TMF may be dominant. For instance, manifolds made of austenitic stainless steel grades usually fail by in-phase TMF. Based on finite element calculation of the V-shape test, a damage criterion is proposed for out-of-phase TMF, which correlates the amplitude of the viscoplastic strain, the maximal temperature, the dwell time during the thermal cycle and the number of cycles to failure.
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Citation
Chinouilh, G., Santacreu, P., and Herbelin, J., "Thermal Fatigue Design of Stainless Steel Exhaust Manifolds," SAE Technical Paper 2007-01-0564, 2007, https://doi.org/10.4271/2007-01-0564.Also In
Steel Innovations, Fatigue Research, Sheet/Hydro/Gas Forming Technology & Advanced High Strength Steel Development
Number: SP-2103; Published: 2007-04-16
Number: SP-2103; Published: 2007-04-16
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