https://doi.org/10.26706/ijaefea.2.7.20200607

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Abstract:-

In this work fatigue failure is examine for bolt with nut connections, when a slight pitch difference is established between bolt and nut. To improve the fatigue life, there are three types of slight pitch difference processed on the specimens and results are discussed in terms of FEM analysis. Taking into consideration the standard dimension bolt and nut connection having pitch difference of (α) =0 μm, the bolt fracture does not happen at the No. 1 thread by introducing a slight pitch difference of (α) =5 μm and pitch difference (α) =15 μm, is observed. Furthermore, it is having been discovered that the fatigue life of bolt can be increase by introducing some slight pitch differences. The effect of bolt-nut connection with slight pitch difference, on the fatigue failure of bolt is discovered.

Index Terms:-

Bolt-Nut Connection, Pitch Difference, Finite Element Method, Fatigue life.

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REFERENCES

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Crossref

[4] Nao-Aki Noda, Yoshikazu Sano Xin Chen, Magd Abdel Wahab, Hikaru Maruyama, “Effect of pitch difference between the bolt and nut connections upon the anti-loosening performance and fatigue life” Materials & Design, Volume 96, April 2016, Pages 476-489.
Crossref

[5] Xin Chen, Nao-Aki Noda, Yu-Ichiro Akaishi, Yoshikazu Sano, “Effect of Pitch Difference on Anti-loosening Performance and fatigue strength for highStrength Bolts and Nuts”, 13th International Conference on Fracture, Beijing, China, June 16–21, 2013.

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[7] Chae-Ho Lee, Beom-Jun Kim, and Seog Young Han, Mechanism for Reducing Stress Concentrations in Bolt and Nut Connectors”, International Journal Of Precision Engineering And Manufacturing, volume 15, No. 7, no. 7, pp. 1337-1343, 2014.
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