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Analiza nastanka prsline mikromehanizmom žilavog loma u konstrukcionom čeliku

dc.creatorRakin, Marko
dc.creatorCvijović, Zorica
dc.creatorGrabulov, Vencislav
dc.creatorBlačić, Ivo
dc.creatorZrilić, Milorad
dc.creatorPutić, Slaviša
dc.date.accessioned2021-03-10T09:57:31Z
dc.date.available2021-03-10T09:57:31Z
dc.date.issued2001
dc.identifier.issn0350-0667
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/386
dc.description.abstractIn the presented paper a micromechanical model based on a particular flow criterion of a porous solid has been applied. In this study crack initiation in the smooth specimen made of steel 22 NiMoCr 3 7 has been analyzed; the micromechanical model was incorporated into the finite element (FE) program. Initial data related to non-metallic inclusions were determined by the quantitative optical microscopy. The study was performed within the scope of ESIS TC8 Numerical Round Robin on Micromechanical Models, Phase II, Task A.... .en
dc.description.abstractU radu je primenjen mikromehanički model zasnovan na posebnom kriterijumu plastičnog tečenja materijala. Nastanak prsline izazvan pojavom, rastom i spajanjem šupljina, analiziran je na osnovu ponašanja pri zatezanju glatke cilindrične epruvete izrađene od čelika 22 NiMoCr 3 7. Ulazni podaci za proračun koji se odnose na zastupljenost i veličinu nemetalnih uključaka su određeni optičkom mikroskopijom. Dobijeni rezultati ukazuju da primenjeni mikromehanički model može da se koristi za karakterizaciju materijala i analizu pojave prsline u standardnoj epruveti izrađenoj od konstrukcionog čelika, a da je kvantitativna metalurška analiza neophodna za opis prve faze žilavog loma - nastanak šupljina. .sr
dc.publisherVojnotehnički institut, Beograd
dc.rightsopenAccess
dc.sourceNaučno-tehnički pregled
dc.subjectductile fracture of structural steelen
dc.subjectmicromechanical modelen
dc.subjectfinite element methoden
dc.subjectžilav lom konstrukcionog čelikasr
dc.subjectmikromehanički modelisr
dc.subjectkvantitativna metalografska analizasr
dc.subjectmetoda konačnih elemenata (MKE)sr
dc.titleAnalysis of crack initiation by micromechanism of ductile fracture in structural steelen
dc.titleAnaliza nastanka prsline mikromehanizmom žilavog loma u konstrukcionom čelikusr
dc.typearticle
dc.rights.licenseARR
dc.citation.epage17
dc.citation.issue2
dc.citation.other51(2): 13-17
dc.citation.spage13
dc.citation.volume51
dc.identifier.rcubconv_1716
dc.type.versionpublishedVersion


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