Vibrational Fatigue of Fuel Pipe Welds of an Aero Engine

Madiha Nazir; Noveed Ejaz; Muhammad Mansoor

doi:10.4028/p-47qsl4

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Vibrational Fatigue of Fuel Pipe Welds of an Aero Engine
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 119Vibrational Fatigue of Fuel Pipe Welds of an Aero...

Vibrational Fatigue of Fuel Pipe Welds of an Aero Engine

Abstract:

During a routine overhaul of an aero engine, a joint of the fuel transmitting pipe was observed leaked. To investigate the cause (s), failed transmission pipe was subjected to detailed investigations utilizing multiple testing techniques to find out the root cause (s) such as radiography, dye penetration testing, optical microscopy, scanning electron microscopy and energy dispersive spectroscopy. It was identified that the welding defects i.e., lack of fusion caused initiation and propagation of the subsurface fatigue cracks under vibrational condition of the aircraft. When the crack length reached a threshold level, it resulted in fuel leakage.

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Periodical:

Advances in Science and Technology (Volume 119)

Pages:

75-79

DOI:

https://doi.org/10.4028/p-47qsl4

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Cite this paper

Online since:

September 2022

Authors:

Madiha Nazir*, Noveed Ejaz, Muhammad Mansoor

Keywords:

Fatigue Crack, Lack of Fusion, Weld Defect

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* - Corresponding Author

References

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