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Elucidation of Fatigue Damage Factors in Metal Diaphragms and Effect of Tightening Loads on Fatigue Life

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Abstract:

The FEM analysis evaluated how varying tightening loads affect diaphragm fatigue life at the position where fretting fatigue is most critical. Increasing body-side tightening load significantly shortened fatigue life, while increasing piece-side load slightly extended it. Under high body-side load, the beneficial effect of greater piece-side load became more noticeable. These findings indicate differing impacts from each side, with the body-side load having a stronger influence. An optimal tightening load balance may exist to maximize fatigue life.

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Periodical:

Key Engineering Materials (Volume 1032)

Pages:

111-116

DOI:

https://doi.org/10.4028/p-5yKpoA

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Cite this paper

Online since:

November 2025

Authors:

Xia Zhu*, Soichiro Abe, Keigo Takahashi, Akane Sakamoto, Naoya Kanai, Hirofumi Iwasakii, Hiromichi Toyota

Keywords:

Fatigue Life, FEM, Fretting Fatigue, Metal Diaphragm, Tightening Force

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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References

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