Končni elementi za simulacijo gubanja tankih lupin na elastičnih substratih : doktorsko delo

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Končni elementi za simulacijo gubanja tankih lupin na elastičnih substratih : doktorsko delo

Veldin, Tomo

V doktorski nalogi smo se ukvarjali z gubanjem tankih lupin na elastičnih substratih. Ker gubanje spada med stabilnostne in močno nelinearne probleme, so takšni sistemi zelo težki za reševanje. S ... temi problemi se v svetu ukvarja zelo malo raziskovalcev, zato je to področje še precej neraziskano. Reševanja problema smo se lotili numerično z metodo končnih elementov. Za opis kinematike lupine smo uporabili Kirchhoff-Loveovo kinematično teorijo, ki je veljavna za tanke lupine. Lupinske končne elemente smo razvili sami, ostale končne elemente pa smo povzeli po literaturi. Računalniške kode končnih elementov smo implementirali s pomočjo programa Mathematica in njenima dodatkoma AceGen in AceFem. Razvili smo nekaj različnih lupinskih končnih elementov, ki so se med seboj razlikovali po načinu interpolacije, prostostnih stopnjah in uporabljenih materialnih modelih. Elastične substrate smo opisali najprej poenostavljeno z Wrinklerjevo podlago, nato pa tudi s 3D-končnimi elementi. Rezultate numeričnih simulacij smo na koncu ovrednotili z meritvami. Meritve smo primerjali z različnimi numeričnimi simulacijami, s čimer smo želeli preveriti, kateri numerični model je najprimernejši za opis pojava gubanja.

Type of material - dissertation ; adult, serious

Publication and manufacture - Ljubljana : [T. Veldin], 2022

Language - slovenian

COBISS.SI-ID - 109623811

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Digitalna knjižnica Slovenije - dLib.si

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Author
Veldin, Tomo

Other authors
Brojan, Miha | Brank, Boštjan

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Year	Impact factor		Edition		Category		Classification
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Links to authors' personal bibliographies	Links to information on researchers in the SICRIS system
Veldin, Tomo	56372
Brojan, Miha	24560
Brank, Boštjan	10562

Source: Personal bibliographies and: SICRIS

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