Failure of mounting bolt of helicopter main gearbox support strut
Само за регистроване кориснике
2016
Аутори
Krstić, BranimirRebhi, Lamine
Ilić, Nada
Dodić, Marjan
Dinulović, Mirko
Andrić, Predrag
Trifković, Dragan
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The mounting bolt of helicopter main gearbox support strut was fractured into two pieces during the flight mission. The fracture occurred at the root of the first engaged thread of the bolt-nut assembly. Visual inspection of the fracture zone revealed cracks, formed by interlinking of corrosion pits, at the almost all thread roots of the bolt. Energy dispersive spectroscopy disclosed significant damage of the cadmium plating as well as the presence of large amounts of corrosion products at the bolt threads. Through the fractography and metallography analysis, it was found that the mounting bolt failed due to hydrogen-induced intergranular stress corrosion cracking (HI-IGSCC). The finite element (FE) analysis confirmed that the crack origin was located at the area with the maximum tensile stress in the bolt.
Кључне речи:
Hydrogen-induced stress corrosion cracking / Helicopter / Finite element analysis / Bolt failuresИзвор:
Engineering Failure Analysis, 2016, 70, 351-363Издавач:
- Pergamon-Elsevier Science Ltd, Oxford
Финансирање / пројекти:
- University of Defence in Belgrade [VA-TT/01/16-18
DOI: 10.1016/j.engfailanal.2016.09.012
ISSN: 1350-6307
WoS: 000387111200026
Scopus: 2-s2.0-84989162450
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Krstić, Branimir AU - Rebhi, Lamine AU - Ilić, Nada AU - Dodić, Marjan AU - Dinulović, Mirko AU - Andrić, Predrag AU - Trifković, Dragan PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2451 AB - The mounting bolt of helicopter main gearbox support strut was fractured into two pieces during the flight mission. The fracture occurred at the root of the first engaged thread of the bolt-nut assembly. Visual inspection of the fracture zone revealed cracks, formed by interlinking of corrosion pits, at the almost all thread roots of the bolt. Energy dispersive spectroscopy disclosed significant damage of the cadmium plating as well as the presence of large amounts of corrosion products at the bolt threads. Through the fractography and metallography analysis, it was found that the mounting bolt failed due to hydrogen-induced intergranular stress corrosion cracking (HI-IGSCC). The finite element (FE) analysis confirmed that the crack origin was located at the area with the maximum tensile stress in the bolt. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Engineering Failure Analysis T1 - Failure of mounting bolt of helicopter main gearbox support strut EP - 363 SP - 351 VL - 70 DO - 10.1016/j.engfailanal.2016.09.012 ER -
@article{ author = "Krstić, Branimir and Rebhi, Lamine and Ilić, Nada and Dodić, Marjan and Dinulović, Mirko and Andrić, Predrag and Trifković, Dragan", year = "2016", abstract = "The mounting bolt of helicopter main gearbox support strut was fractured into two pieces during the flight mission. The fracture occurred at the root of the first engaged thread of the bolt-nut assembly. Visual inspection of the fracture zone revealed cracks, formed by interlinking of corrosion pits, at the almost all thread roots of the bolt. Energy dispersive spectroscopy disclosed significant damage of the cadmium plating as well as the presence of large amounts of corrosion products at the bolt threads. Through the fractography and metallography analysis, it was found that the mounting bolt failed due to hydrogen-induced intergranular stress corrosion cracking (HI-IGSCC). The finite element (FE) analysis confirmed that the crack origin was located at the area with the maximum tensile stress in the bolt.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Engineering Failure Analysis", title = "Failure of mounting bolt of helicopter main gearbox support strut", pages = "363-351", volume = "70", doi = "10.1016/j.engfailanal.2016.09.012" }
Krstić, B., Rebhi, L., Ilić, N., Dodić, M., Dinulović, M., Andrić, P.,& Trifković, D.. (2016). Failure of mounting bolt of helicopter main gearbox support strut. in Engineering Failure Analysis Pergamon-Elsevier Science Ltd, Oxford., 70, 351-363. https://doi.org/10.1016/j.engfailanal.2016.09.012
Krstić B, Rebhi L, Ilić N, Dodić M, Dinulović M, Andrić P, Trifković D. Failure of mounting bolt of helicopter main gearbox support strut. in Engineering Failure Analysis. 2016;70:351-363. doi:10.1016/j.engfailanal.2016.09.012 .
Krstić, Branimir, Rebhi, Lamine, Ilić, Nada, Dodić, Marjan, Dinulović, Mirko, Andrić, Predrag, Trifković, Dragan, "Failure of mounting bolt of helicopter main gearbox support strut" in Engineering Failure Analysis, 70 (2016):351-363, https://doi.org/10.1016/j.engfailanal.2016.09.012 . .