Fatigue Life Prediction of Welded Case Shell on Aeroengine under Combined Internal Pressure and Axial Loads

Xiao Xue Duan; Yan Hua Zhang

doi:10.4028/www.scientific.net/AMR.652-654.1505

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 652-654Fatigue Life Prediction of Welded Case Shell on...

Fatigue Life Prediction of Welded Case Shell on Aeroengine under Combined Internal Pressure and Axial Loads

Abstract:

Stress and fatigue analysis of welded case shell on aeroengine under combined internal pressure and axial loads using elastic-plastic finite element has been performed. The results show that the largest stress concentration appears on the mutational cross section of the fixture seat and fixture fringe structure some distance from the weld toe. The positions with the weakest fatigue life locate at the fixture fringe close to the weld toe of girth joint, and also appear at the ring closed weld of the case shell middle.

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Periodical:

Advanced Materials Research (Volumes 652-654)

Pages:

1505-1508

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.652-654.1505

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Online since:

January 2013

Authors:

Xiao Xue Duan, Yan Hua Zhang

Keywords:

Aeroengine, Case Shell, Fatigue Life

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References

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