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Mehanska samoojačitev debelostene cevi : magistrsko deloPerenda, Jasenko, 1973-Namen magistrskega dela je določitev porazdelitve zaostalih napetosti v samoojačani debelostenski cvevi. Samoojačitev je postopek za prednapenjanje monoblok cevi. Pri tem postopku je cev ... izpostalvjena notranjemu tlaku, ki povzroči delno ali popolno tečenje materiala v steni cevi. Pri tem se zunanji sloji (elastično deformirani) poskušajo vrniti v osnovno stanje, medtem ko se notranji, plastično deformirani sloji, temu zoperstalvjajo in poskušajo ohraniti povečani premer. Poslediva tega so zaostale napetosti v steni cevi. Vdelu so predstavljeni različni matematični modeli izračuna zaostalih napetosti problema mehanske samoojačitve. Upoštevani so različni pogoji obremenjevanja in razbremenjevanja. Uporabljeni so numerični in analitični modeli izračuna zaostalih radialnih in obodnih napetosti. Reziultati kažejo, da je analiza občutljiva glede na predpostavljeni model tečenja. Najboljši rezultati so doseženi s pomočjo osnosimetrične metode za predvidevanje zaostalih napetosti, pri čemer je upoštevana numerična aproksimacija za krivuljo razbremenjevanja materiala.Type of material - master's thesisPublication and manufacture - Maribor : [J. Perenda], 2001Language - slovenianCOBISS.SI-ID - 7062294
Author
Perenda, Jasenko, 1973-
Other authors
Potrč, Iztok |
Ren, Zoran
Topics
avtofretaža |
samoojačitev |
debelostene cevi |
elastično-plastično model |
prednapenjanje |
napetostna analiza |
autofrettage |
thickwall cylinders |
elastic-plastic model |
prestressing |
stress analysis
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Library | Call number – location, accession no. ... | Copy status |
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Library of Technical Faculties, Maribor | pisarna A-003 (FERI) MD PERENDA J. MEHANSKA | available - reading room |
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Perenda, Jasenko, 1973- | 24005 |
Potrč, Iztok | 02046 |
Ren, Zoran | 08779 |
Source: Personal bibliographies
and: SICRIS
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