3-Dimensional Finite Element Analysis of the Residual Stress by Cold Expansion Method and Interference Fit

Jae Soon Jang; Myoung Rae Cho; Won Ho Yang

doi:10.4028/www.scientific.net/KEM.326-328.1079

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 326-3283-Dimensional Finite Element Analysis of the...

3-Dimensional Finite Element Analysis of the Residual Stress by Cold Expansion Method and Interference Fit

Abstract:

Cold expansion method and interference fit of fastener hole have been used for over 40 years by the aircraft industry to improve the fatigue life of structures because they induce compressive residual stresses around holes. Especially, interference fits are very widely applied in the industry, because of their simple manufacturing process. There have been only few studies on the difference in the effect between cold expansion method and interference fit. The purpose of this study is to compare the effect between cold expansion method and interference fit according to plate thickness. Furthermore, residual stress distribution according to real clamping force is also investigated.

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Periodical:

Key Engineering Materials (Volumes 326-328)

Pages:

1079-1082

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.326-328.1079

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Online since:

December 2006

Authors:

Jae Soon Jang, Myoung Rae Cho, Won Ho Yang

Keywords:

Clamping Force, Cold Expansion Method, Fastener Hole, Finite Element Analysis (FEA), Interference Fit

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References

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