Numerical fatigue analysis of the turbine components under low cycle fatigue (LCF) conditions
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Publication date: 2006-11-01
Combustion Engines 2006,127(4), 54-60
This paper presents results of the stress and fatigue analysis of the turbine disc and blade. A non-linear finite element method was utilized to determine the stress state of the turbine components under operational condition. A critical, high stress zones were found at the several region of turbine. Results obtained from the preliminary static calculation were next used into total fatigue life (S-N) analysis performed for the load time history equivalents to 1-hours work of engine under operating flight. In this analysis, the number of hours to the total damage of the critical components of turbine subjected to low cycle fatigue was estimated.
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