Failure analysis of bolted joint for the column of an aerial platform
2016
Аутори
Rakićević, BranislavManeski, Miloš
Mitić, Saša
Vorotović, Goran
Kozak, Dražan
Katinić, Marko
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
This paper focuses on the identification of failure causes of a bolted joint used for the bedding of a primary column of an aerial platform. The tests conducted to determine chemical composition and mechanical properties have confirmed the 12.9 grade of the bolts. Also, mechanical properties tests and metallographic examination did not indicate any hidden defects caused by heat treatment (e.g. decarburisation etc.). On the other hand, visual and metallographic examination of cross-section as well as electron microscope scanning confirmed fatigue fracture of the bolts. Therefore, further analyses were done to check the dimensioning and the installation of the bolts. The effects on stress states in the bolts are presented from the standpoint of rated operating regimes, stiffness of joined elements, lubrication conditions of thread surfaces and temperature incompatibility between the bolts and elements being joined. Pre-tightening torque value incompatible with lubrication conditions was ...found to be the main factor that led to high stress values that initiated and later intensified the fatigue process which ended in fatigue failure of the bolts.
Кључне речи:
failure of bolts with high mechanical properties / bolted joint lubricationИзвор:
Tehnički vjesnik, 2016, 23, 5, 1301-1306Издавач:
- Univ Osijek, Tech Fac, Slavonski Brod
Финансирање / пројекти:
DOI: 10.17559/TV-20150513090840
ISSN: 1330-3651
WoS: 000385369100009
Scopus: 2-s2.0-84991585350
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Rakićević, Branislav AU - Maneski, Miloš AU - Mitić, Saša AU - Vorotović, Goran AU - Kozak, Dražan AU - Katinić, Marko PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2496 AB - This paper focuses on the identification of failure causes of a bolted joint used for the bedding of a primary column of an aerial platform. The tests conducted to determine chemical composition and mechanical properties have confirmed the 12.9 grade of the bolts. Also, mechanical properties tests and metallographic examination did not indicate any hidden defects caused by heat treatment (e.g. decarburisation etc.). On the other hand, visual and metallographic examination of cross-section as well as electron microscope scanning confirmed fatigue fracture of the bolts. Therefore, further analyses were done to check the dimensioning and the installation of the bolts. The effects on stress states in the bolts are presented from the standpoint of rated operating regimes, stiffness of joined elements, lubrication conditions of thread surfaces and temperature incompatibility between the bolts and elements being joined. Pre-tightening torque value incompatible with lubrication conditions was found to be the main factor that led to high stress values that initiated and later intensified the fatigue process which ended in fatigue failure of the bolts. PB - Univ Osijek, Tech Fac, Slavonski Brod T2 - Tehnički vjesnik T1 - Failure analysis of bolted joint for the column of an aerial platform EP - 1306 IS - 5 SP - 1301 VL - 23 DO - 10.17559/TV-20150513090840 ER -
@article{ author = "Rakićević, Branislav and Maneski, Miloš and Mitić, Saša and Vorotović, Goran and Kozak, Dražan and Katinić, Marko", year = "2016", abstract = "This paper focuses on the identification of failure causes of a bolted joint used for the bedding of a primary column of an aerial platform. The tests conducted to determine chemical composition and mechanical properties have confirmed the 12.9 grade of the bolts. Also, mechanical properties tests and metallographic examination did not indicate any hidden defects caused by heat treatment (e.g. decarburisation etc.). On the other hand, visual and metallographic examination of cross-section as well as electron microscope scanning confirmed fatigue fracture of the bolts. Therefore, further analyses were done to check the dimensioning and the installation of the bolts. The effects on stress states in the bolts are presented from the standpoint of rated operating regimes, stiffness of joined elements, lubrication conditions of thread surfaces and temperature incompatibility between the bolts and elements being joined. Pre-tightening torque value incompatible with lubrication conditions was found to be the main factor that led to high stress values that initiated and later intensified the fatigue process which ended in fatigue failure of the bolts.", publisher = "Univ Osijek, Tech Fac, Slavonski Brod", journal = "Tehnički vjesnik", title = "Failure analysis of bolted joint for the column of an aerial platform", pages = "1306-1301", number = "5", volume = "23", doi = "10.17559/TV-20150513090840" }
Rakićević, B., Maneski, M., Mitić, S., Vorotović, G., Kozak, D.,& Katinić, M.. (2016). Failure analysis of bolted joint for the column of an aerial platform. in Tehnički vjesnik Univ Osijek, Tech Fac, Slavonski Brod., 23(5), 1301-1306. https://doi.org/10.17559/TV-20150513090840
Rakićević B, Maneski M, Mitić S, Vorotović G, Kozak D, Katinić M. Failure analysis of bolted joint for the column of an aerial platform. in Tehnički vjesnik. 2016;23(5):1301-1306. doi:10.17559/TV-20150513090840 .
Rakićević, Branislav, Maneski, Miloš, Mitić, Saša, Vorotović, Goran, Kozak, Dražan, Katinić, Marko, "Failure analysis of bolted joint for the column of an aerial platform" in Tehnički vjesnik, 23, no. 5 (2016):1301-1306, https://doi.org/10.17559/TV-20150513090840 . .