Analyses of Fractures that have Caused Traffic Accidents
Abstract
The paper analyses some fractures of vehicle componentswhich have caused traffic accidents. The methods of analysingthe cause of fracture have been described, as well as the maintypes of fractures. The first analysed cause of a fracture is the excessivelyrough machine finish which leaves cracks (stress concentrators),the starting points of crack propagation. The secondcause is unprofessionally per[01med welding which later inservice causes fracture at the weld. The third cause is the toohigh content of carbon in the material of the railway vehiclewheel rim. Dwing braking, the higher content of carbon causedformation of excessively hard (and brittle) martensite in thesurface layer of the rim.References
Metals Handbook Vol. 10. Failure Analysis and Prevention,
American Society for Metals, Metals Park, Ohio
Metals Handbook Vol. 9. Fractography and Atlas of
Fractographs, American Society for Metals, Metals
Park, Ohio 1974
Perse, S.: Osnove strojarstva I, Fakultet prometnih
znanosti, Zagreb, 1993
Ispitivanje dinamicke izdriljivosti osovine. Report for
Istra-Auto Umag, Zavod za materijale Fakulteta strojarstva
i brodogradnje, Zagreb, 19. March 1986
Ispitivanje prijeloma osovine elektricne lokomotive 441 .
Report for ZTP Zagreb, Odrzavanje vucnih vozila, Zavod
za materijale Fakulteta strojarstva i brodogradnje u
Zagrebu, Zagreb, 4. Jan, 1982
How to Cite
1.
Perše S, Kovačević D, Maković B. Analyses of Fractures that have Caused Traffic Accidents. Promet [Internet]. 1 [cited 2024Nov.23];9(4):171-5. Available from: https://traffic.fpz.hr/index.php/PROMTT/article/view/793
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