Faculty of Mechanical Engineering, Lj. (FSLJ)
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Model tankega filma na elastičnem substratu za simulacijo ovirane rasti bioloških tkiv : magistrsko delo magistrskega študijskega programa II. stopnje StrojništvoKumer, Nina, 1995-V magistrski nalogi je obravnavana mehanska stabilnost površine. Teoretični del je razdeljen na dva dela: v prvem je analiziran površinski uklon zaradi ovirane volumetrične rasti tkiva, v drugem pa ... je obravnavan tlačno obremenjen dvoslojni sistem, sestavljen iz tankega filma, ki leži na debelejšem substratu. Sistem obremenimo na tri različne načine: obremenitev celotne domene, obremenitev filma zaradi rasti filma in obremenitev filma zaradi pred-raztegnjenega substrata. Obravnavani so sistemi z različnimi razmerji togosti med filmom in substratom, beta. Izpeljan je splošen nabor 8 vodilnih enačb za nestabilnost dvoslojnih sistemov, ki ga nadalje skrčimo glede na obravnavan primer. Kot rezultat dobimo kritične deformacije v odvisnosti od razmerja togosti in od normirane valovne dolžine. Za vse primere izvedemo še numerične simulacije v Abaqusu, pri čemer ugotovimo, da se numerični rezultati precej dobro ujemajo z analitičnimi za beta=100 in 10, pri nižjih razmerjih togosti pa so odstopanja zelo velika. Za ravninske primere izvedemo tudi statično strukturno analizo in na podlagi dobljenih podatkov izrišemo grafe, iz katerih je razvidno, kdaj sistem ukloni. Z numerično simulacijo dobimo tudi uklone v več smereh, ki jih analitično ne predvidimo. Na koncu analiziramo še več lastnih oblik, po tem ko površina že ukloni, in ugotovimo, da so si v nekaterih primerih le-te zelo blizu, kar se tiče kritične obremenitve.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [N. Kumer], 2020Language - slovenianCOBISS.SI-ID - 44263683
Author
Kumer, Nina, 1995-
Other authors
Brojan, Miha
Topics
magistrske naloge |
uklon površine |
gubanje |
rast |
film |
substrat |
master thesis |
surface buckling |
wrinkling |
growth |
film |
substrate |
Abaqus
Call number – location, accession no. ... |
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MAG 0000000888 IN: 70000888 MAG 888 IN: 70000888 |
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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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Kumer, Nina, 1995- | |
Brojan, Miha | 24560 |
Source: Personal bibliographies
and: SICRIS
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