Failure analysis of the combat jet aircraft rudder shaft
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2011
Authors
Trifković, DraganStupar, Slobodan
Bošnjak, Srđan
Milovančević, Milorad
Krstić, Branimir
Rajić, Zoran
Dunjić, Momčilo
Article (Published version)
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This paper analyzes failure causes of the combat jet aircraft rudder shaft (RS) which occurred during the flight mission. A finite element method (FEM), utilized to determine the stress state of the RS subjected to hinge moment ultimate load, resulted in the high stress concentration sites around the rivet holes. The longitudinal crack was initiated from the corrosion pit in the zone of the rivet hole, where the fatigue beach marks were observed. The inner surface of the RS was heavily corroded. Moreover, pitting corrosion has destroyed approximately 50% of the wall thickness. Based on the presented results it was concluded that the failure of the RS had a character of fatigue combined with heavy corrosion. Therefore, it is recommended that the RS should be redesigned; the material changed into more corrosion resistant one and the maintenance procedure changed in order to avoid future similar failures.
Keywords:
Shafts / Finite element analysis / Failure analysis / Aircraft failuresSource:
Engineering Failure Analysis, 2011, 18, 8, 1998-2007Publisher:
- Pergamon-Elsevier Science Ltd, Oxford
Funding / projects:
- Military Technical Institute (Ministry of Defense of the Republic of Serbia)
DOI: 10.1016/j.engfailanal.2011.05.017
ISSN: 1350-6307
WoS: 000297566700007
Scopus: 2-s2.0-80054749413
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Inovacioni centarTY - JOUR AU - Trifković, Dragan AU - Stupar, Slobodan AU - Bošnjak, Srđan AU - Milovančević, Milorad AU - Krstić, Branimir AU - Rajić, Zoran AU - Dunjić, Momčilo PY - 2011 UR - https://machinery.mas.bg.ac.rs/handle/123456789/1199 AB - This paper analyzes failure causes of the combat jet aircraft rudder shaft (RS) which occurred during the flight mission. A finite element method (FEM), utilized to determine the stress state of the RS subjected to hinge moment ultimate load, resulted in the high stress concentration sites around the rivet holes. The longitudinal crack was initiated from the corrosion pit in the zone of the rivet hole, where the fatigue beach marks were observed. The inner surface of the RS was heavily corroded. Moreover, pitting corrosion has destroyed approximately 50% of the wall thickness. Based on the presented results it was concluded that the failure of the RS had a character of fatigue combined with heavy corrosion. Therefore, it is recommended that the RS should be redesigned; the material changed into more corrosion resistant one and the maintenance procedure changed in order to avoid future similar failures. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Engineering Failure Analysis T1 - Failure analysis of the combat jet aircraft rudder shaft EP - 2007 IS - 8 SP - 1998 VL - 18 DO - 10.1016/j.engfailanal.2011.05.017 ER -
@article{ author = "Trifković, Dragan and Stupar, Slobodan and Bošnjak, Srđan and Milovančević, Milorad and Krstić, Branimir and Rajić, Zoran and Dunjić, Momčilo", year = "2011", abstract = "This paper analyzes failure causes of the combat jet aircraft rudder shaft (RS) which occurred during the flight mission. A finite element method (FEM), utilized to determine the stress state of the RS subjected to hinge moment ultimate load, resulted in the high stress concentration sites around the rivet holes. The longitudinal crack was initiated from the corrosion pit in the zone of the rivet hole, where the fatigue beach marks were observed. The inner surface of the RS was heavily corroded. Moreover, pitting corrosion has destroyed approximately 50% of the wall thickness. Based on the presented results it was concluded that the failure of the RS had a character of fatigue combined with heavy corrosion. Therefore, it is recommended that the RS should be redesigned; the material changed into more corrosion resistant one and the maintenance procedure changed in order to avoid future similar failures.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Engineering Failure Analysis", title = "Failure analysis of the combat jet aircraft rudder shaft", pages = "2007-1998", number = "8", volume = "18", doi = "10.1016/j.engfailanal.2011.05.017" }
Trifković, D., Stupar, S., Bošnjak, S., Milovančević, M., Krstić, B., Rajić, Z.,& Dunjić, M.. (2011). Failure analysis of the combat jet aircraft rudder shaft. in Engineering Failure Analysis Pergamon-Elsevier Science Ltd, Oxford., 18(8), 1998-2007. https://doi.org/10.1016/j.engfailanal.2011.05.017
Trifković D, Stupar S, Bošnjak S, Milovančević M, Krstić B, Rajić Z, Dunjić M. Failure analysis of the combat jet aircraft rudder shaft. in Engineering Failure Analysis. 2011;18(8):1998-2007. doi:10.1016/j.engfailanal.2011.05.017 .
Trifković, Dragan, Stupar, Slobodan, Bošnjak, Srđan, Milovančević, Milorad, Krstić, Branimir, Rajić, Zoran, Dunjić, Momčilo, "Failure analysis of the combat jet aircraft rudder shaft" in Engineering Failure Analysis, 18, no. 8 (2011):1998-2007, https://doi.org/10.1016/j.engfailanal.2011.05.017 . .