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Određivanje parametara zamornog rasta prsline kod zavarenih spojeva od HSLA čelika

dc.creatorMilović, Ljubica
dc.creatorVuherer, Tomaz
dc.creatorRadaković, Zoran
dc.creatorPetrovski, Blagoj
dc.creatorJanković, Miodrag
dc.creatorZrilić, Milorad
dc.creatorDaničić, Darko
dc.date.accessioned2021-03-10T11:32:03Z
dc.date.available2021-03-10T11:32:03Z
dc.date.issued2011
dc.identifier.issn1451-3749
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/1840
dc.description.abstractThe structural integrity and operational safety of welded pressure vessels primarily depends on the behaviour of weldments. In spite of all efforts in material production and improvements in welding techniques, including strict codes, requirements and directives, the crack occurrence in welded structures cannot be completely excluded. This is why fracture mechanics analysis is inevitable in the structural integrity assessment of all welded structures. Examples of practical application of fracture mechanics parameters in cracked pressure vessel structural integrity are considered. This paper shows the determination of parameters of the fatigue crack for constituents of welded joints produced of high strength low alloyed steel Nionikral-70 (yield strength 700 MPa). Results have shown that the position of notch and crack initiation affect the values of the stress intensity range of fatigue threshold DKth and parameters in the Paris' equation.en
dc.description.abstractIntegritet konstrukcije i sigurnost u radu zavarenih posuda pod pritiskom uglavnom zavisi od ponašanja zavarenih spojeva. Pored svih uloženih napora u proizvodnji i poboljšanja postupaka zavarivanja, uključujući i stroge standarde, zahteve i smernice, pojava prslina u zavarenim konstrukcijama se ne može u potpunosti izbeći. Zato je analiza mehanike loma neophodna u proceni integriteta svih zavarenih konstrukcija. Razmotreni su primeri praktične primene parametara mehanike loma u integritetu posuda pod pritiskom sa prslinom. Rad prikazuje određivanje parametara zamorne prsline za konstituente zavarenih spojeva izrađenih od niskolegiranog čelika povišene čvrstoće Nionikral-70 (napona tečenja 700 MPa). Rezultati pokazuju da položaj zareza i inicijacija prsline utiču na vrednosti raspona napona za granicu zamora DKth i na parametre Parisove relacije.sr
dc.publisherSociety for Structural Integrity and Life, Institute for Material Testing
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/35011/RS//
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceIntegritet i vek konstrukcija
dc.subjectHSLA steelen
dc.subjectcrack growth rateen
dc.subjectfatigue thresholden
dc.subjectParis' lawen
dc.subjectHSLA čeliksr
dc.subjectbrzina rasta prslinesr
dc.subjectgranica zamaranjasr
dc.subjectParisov zakonsr
dc.titleDetermination of fatigue crack growth parameters in welded joint of HSLA steelen
dc.titleOdređivanje parametara zamornog rasta prsline kod zavarenih spojeva od HSLA čelikasr
dc.typearticle
dc.rights.licenseBY-NC-ND
dc.citation.epage187
dc.citation.issue3
dc.citation.other11(3): 183-187
dc.citation.rankM51
dc.citation.spage183
dc.citation.volume11
dc.identifier.fulltexthttp://TechnoRep.tmf.bg.ac.rs/bitstream/id/11592/183-187-IVK3-2011-LjM-TV-ZR-MJ-MZ-DD.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_technorep_1840
dc.identifier.scopus2-s2.0-84892692477
dc.type.versionpublishedVersion


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