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Hronologija gubitka integriteta konstrukcija zbog grešaka izrade zavarenih konstrukcija / Chronology of lost structural integrity initiated from manufacturing defects in welded structures
(Institut za ispitivanje materijala, Beograd, 2009)
U različitim vremenskim periodima dolazilo je do gubitka integriteta zavarenih konstrukcija zbog razvoja proizvodnih grešaka zavarenog spoja. Mehanizmi otkaza su bili različiti i uvek su predstavljali novo iskustvo, koje ...
Uticaj prsline na karakteristike zavarenog spoja pri različitim vrstama opterećenja / Influence of crack on welded joint characteristics in different types of loads
(Vojnotehnički institut, Beograd, 2018)
Primena čelika visoke čvrstoće kod projektovanja zavarenih konstrukcija zahteva podatke o svojstvima istih pri različitim uslovima opterećenja. Zahvaljujući visokom naponu tečenja debljina zida može se smanjiti u poređenju ...
A new methodology for prediction of high-cycle contact fatigue for spur gears
(Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad, 2012)
High-cycle contact fatigue is a localized phenomenon that occurs in highly stressed grains of the material on or under the contact region. The contact zones of tooth flanks for meshed gears are subjected to contact fatigue ...
Methodology of determination the influence of corrosion pit on decrease of hydro turbine shaft fatigue life
(Univerzitet u Novom Sadu - Fakultet tehničkih nauka, Novi Sad, 2012)
This paper describes the influence of corrosion on stress concentration factor and crack initiation at shaft flange transition section. The case study of hydraulic turbine shaft failure is used as the basis for this research. ...
Morphology of corrosion fatigue and stress corrosion cracks on low alloy steels
(Society for Structural Integrity and Life – Prof. Dr Stojan Sedmak (DIVK), 2018)
The fracture surface appearances are slowly changed through decade’s side by advantages in technology of steel production.
Basic requirements for cleaner steels and lower energy consumption during production induce that ...
Application of gradient elasticity on corrosion fatigue damage assessment
(Proceedings of the 6th International Congress of Serbian Society of Mechanics, Tara, Serbia, 2017)
Researchers in the field of fracture mechanics, today predominantly developing appropriate
solution algorithms for problems of solid bodies with cracks. Problems in mechanics
generally, related with fracture and fatigue ...
Comprehensive approach to weld repair on elements of power transmission – case study for hydro turbine shaft
(Proceedings of the The 4th IIW South – East European Welding Congress, October, 10-13, 2018, Belgrade, 2018)
Turbine and generator rotors and shafts undergo high
stresses during regular working life and, from a safety
and operational aspect, are the most significant
components of a power generation system. Depending
on the ...
Occurrence of cracks due to inadequate turbine shaft construction
(Proceedings of the 16th International Conference on Accomplishments in Mechanical and Industrial Engineering -DEMI 2023, 2023)
After several decades of constant exploitation of the horizontal bulb turbine, which is an integral
part of the hydroelectric power unit, empirically, the formation of a crack occurs in the turbine shaft
due to the ...
Razvoj metoda za povećanje radnog veka i pouzdanosti mašinskih sistema u uslovima zamora / Development of methods for increase of working life and reliability of mechanical systems under fatigue loading
(Univerzitet u Beogradu, Mašinski fakultet, 2015)
U ovom radu prikazan je razvoj metoda za procenu nastanka i širenja zamornih prslina u cilju povećanja radnog veka i pouzdanosti mašinskih elemenata i mašinskih sistema u uslovima zamora. Detaljno je izložena i analizirana ...
Presence of crack due the constant exploitation of turbine shaft
(Advanced Technologies & Materials, 2023)
Designing, constructing and putting into operation a hydroelectric power plant includes complex
tasks. Stresses of turbine and hydromechanical equipment of hydro power plants arise during the
production of parts and ...