#7482. A modified damage accumulation model for life prediction of aero-engine materials under combined high and low cycle fatigue loading

October 2026publication date
Proposal available till 18-05-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Mechanical Engineering;
Mechanics of Materials;
Materials Science (all);
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Abstract:
Aero-engine hot section components experience combined high and low cycle fatigue (CCF) loading under actual working conditions. This paper proposes a modified fatigue damage accumulation model to precisely predict lifetimes of aero-engine materials according to the newly presented interaction factor, which is able to quantitatively map damage interactions introduced by high cycle fatigue (HCF) and low cycle fatigue (LCF) loads. With the model, the lifetimes of four typical engine materials are predicted and compared to their factual data from experiments.
Keywords:
aero-engine materials; CCF loading; damage accumulation; fatigue life prediction; interaction damage

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