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Vpliv velikosti deformacije in temperature na časovno odvisno relaksacijo elastomernega tesnila : magistrsko delo magistrskega študijskega programa II. stopnje StrojništvoVovk, JakaZa polimerne materiale je značilno, da se njihove lastnosti s časom spreminjajo. Eden izmed značilnih časovno odvisnih procesov je tudi proces relaksacije. To je proces, pri katerem se napetosti v ... materialu, ki je v deformiranem stanju, s časom zmanjšujejo. V nalogi je obravnavan primer tesnila izdelanega iz silikonske gume, za katerega smo ovrednotili napetostno stanje in tesnilni tlak v odvisnosti od temperature po pretečenem času enega leta. Osnovne materialne lastnosti, potrebne za definicijo materialnega modela, smo določili na podlagi meritev natezne karakteristike in strižne relaksacije. Ustreznost materialnega modela smo preverili z numerično simulacijo meritve strižnega relaksacijskega modula. Ugotovljeno je, da se napetosti v tesnilu s časom zmanjšujejo in po enem letu pri temperaturi 20°C dosegajo 76,6% začetne vrednosti. Z naraščanjem temperature tesnila se proces zmanjševanja napetosti in posledično tudi tesnilnega tlaka pospeši.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [J. Vovk], 2022Language - slovenianCOBISS.SI-ID - 106984451
Author
Vovk, Jaka
Other authors
Slemenik Perše, Lidija |
Halilovič, Miroslav
Topics
magistrske naloge |
polimeri |
tesnila |
relaksacija napetosti |
silikonska guma |
master thesis |
seals |
silicone rubber |
polymers
Library | Call number – location, accession no. ... | Copy status |
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Faculty of Mechanical Engineering, Lj. | MAG 963 IN: 70000963 |
available - reading room |
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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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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Vovk, Jaka | |
Slemenik Perše, Lidija | 22701 |
Halilovič, Miroslav | 20443 |
Source: Personal bibliographies
and: SICRIS
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