Karakterizacija kompleksnega modula elastičnosti viskoelastičnega materiala na podlagi dinamskega odziva plošče : magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo

Faculty of Mechanical Engineering, Lj. (FSLJ)

Karakterizacija kompleksnega modula elastičnosti viskoelastičnega materiala na podlagi dinamskega odziva plošče : magistrsko delo magistrskega študijskega programa II. stopnje Strojništvo

Kladnik, Andraž

Pogostost uporabe polimernih materialov v zahtevnih inženirskih aplikacijah se povečuje z boljšim razumevanjem njihovih temperaturno in časovno odvisnih materialnih lastnosti. Dinamske lastnosti ... polimerov popisuje kompleksni modul, ki se ga določi z metodo dinamske mehanske analize DMA (ang. Dynamic Mechanical Analysis). Glavna pomanjkljivost te analize je način vpetja vzorca, saj je togost vpetja odvisna od temperature, pri kateri se izvaja meritev. V sklopu magistrskega dela je bil zasnovan nov postopek določanja dinamskih lastnosti, pri katerem je vzorec prosto vpet. Vzorec predstavlja plošča, ki jo dinamsko vzbujamo brezkontaktno preko permanentnega magneta in tuljave, njen odziv pa merimo z laserskim vibrometrom. Na podlagi frekvenčnih prenosnih funkcij nato preko ekvivalentnega numeričnega modela s posodabljanjem določimo kompleksni modul. Meritve so bile opravljene pri več temperaturah. Rezultati nove metode so primerljivi z rezultati DMA analize.

Type of material - master's thesis ; adult, serious

Publication and manufacture - Ljubljana : [A. Kladnik], 2021

Language - slovenian

COBISS.SI-ID - 78071811

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Call number – location, accession no. ...	Copy status	Reservation
MAG 0000000936 IN: 70000936 MAG 936 IN: 70000936	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
Kladnik, Andraž
Boltežar, Miha	02034
Česnik, Martin, strojnik	32073

Source: Personal bibliographies and: SICRIS

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