Mehanska samoojačitev debelostene cevi : magistrsko delo

(UM)

Mehanska samoojačitev debelostene cevi : magistrsko delo

Perenda, 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 thesis

Publication and manufacture - Maribor : [J. Perenda], 2001

Language - slovenian

COBISS.SI-ID - 7062294

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Perenda, Jasenko, 1973-

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Library	Call number – location, accession no. ...	Copy status
Library of Technical Faculties, Maribor	pisarna A-003 (FERI) MD PERENDA J. MEHANSKA	available - reading room

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Year	Impact factor		Edition		Category		Classification
Year	JCR	SNIP	JCR	SNIP	JCR	SNIP	JCR	SNIP

Links to authors' personal bibliographies	Links to information on researchers in the SICRIS system
Perenda, Jasenko, 1973-	24005
Potrč, Iztok	02046
Ren, Zoran	08779

Source: Personal bibliographies and: SICRIS

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