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Repair of cracks detected in cast components of vertical Kaplan turbine rotor hub
(Institut za ispitivanje materijala, Beograd, 2019)
During the revitalization of the hydroelectric generating station A4 at the hydro power plant 'Djerdap 1', all of its parts are subjected to non-destructive testing. Cracks are detected in cast part of generator rotor hub, ...
Behaviour of nionikral-70 in low-cycle fatigue
(Institut za ispitivanje materijala, Beograd, 2017)
Experimental research on the behaviour of high-strength low-alloy steel ( HSLA)exposed to low-cycle fatigue (LCF) with controlled and fully reversible strain (Delta epsilon/2 = const, R epsilon =epsilon(min)/epsilon(max) ...
Experimental study on the stresses at the i-beam end-plate moment connection
(Institut za ispitivanje materijala, Beograd, 2019)
The paper deals with experimental study of the stresses at the bolted end-plate moment connection. The design parameters are adopted to include prying effects in joint. A stress level is obtained in the elements where the ...
Greške na elementima od aluminijum-magnezijum legure - uticaj uključaka / The flaws of aluminium-magnesium alloy elements: Influence of inclusions
(Institut za rudarstvo i metalurgiju, Bor, 2014)
Rezultati ispitivanja uticaja uklanjanja gasa iz tečnog metala na kvalitet livenih elemenata od aluminijum-magnezijum legure, a na bazi recikliranih materijala su dati ovom radu. Dobijeni rezultati praktično definišu ...
Procena ponašanja zavarenog spoja HSLA čelika opterećenog na zamor primenom parametara mehanike loma / Assessment of the behaviour of fatigue loaded HSLA steel welded joint by applying fracture mechanics parameters
(Institut za ispitivanje materijala, Beograd, 2012)
U zavarenim spojevima, sa gledišta mehanike loma, se pretpostavlja prisustvo prslina, gde se onda vek s obzirom na zamor takvih konstrukcija sa prslinama procenjuje vremenom rasta prsline pod promenljivim opterećenjem. ...
Analiza sleganja temelja usled progresivnog provlažavanja prašinastih glina / Analysis of foundation settlement from progressive moistening of silty clay
(Institut za rudarstvo i metalurgiju, Bor i Komitet za podzemnu eksploataciju mineralnih sirovina, Resavica, 2012)
Nisu retki primeri vidljivih oštećenja (pukotine i prsline po fasadnim zidovima) na starijim građevinama Beograda koje su fundirane plitko. Najčešće je to posledica neravnomernih sleganja koja često nastaju usled nepredviđenog ...
Tertiary plutonic rocks of southern Serbia Vardar Zone as dimension stone
(Univerzitet u Beogradu - Rudarsko-geološki fakultet, Beograd, 2014)
Three granitoid plutons of south-Serbian part of the Vardar Zone, of Tertiary
age were studied in order to establish their potential for utilization as
dimension stone. These rocks vary in composition from ...
Analysis of causes of degradation of parent material and weld metal of breeches pipe at hydro power plant 'Perućica'
(Institut za ispitivanje materijala, Beograd, 2015)
Presented are results of non-destructive tests performed on the parent material and welded joints of structural parts of a breeches pipe (collar and anchor), and results of destructive tests performed on the parent material ...
Effect of locally damaged elbow segments on the integrity and reliability of the heating system
(Institut za ispitivanje materijala, Beograd, 2016)
This paper presents the integrity and reliability evaluation of the heating system as a whole, based on results of metallographic tests performed on parent material and the ultrasonic measurement of wall thickness of elbows ...
Procena čvrstoće pri pritisku betona sa prirodnim i recikliranim agregatom / The estimation of compressive strength of normal and recycled aggregate concrete
(Univerzitet u Nišu, Niš, 2011)
Procena čvrstoće pri pritisku se postavlja kao važan zadatak proizvođačima betona, naročito pri projektovanju betonskih mešavina i obezbeđenju zahtevanog kvaliteta proizvedenog betona. U radu je prikazano poređenje ...