Naslov
A Finite Element Model of a Carbon Nanotube for Thermally Variable Environments

Autori
Čanađija, Marko ; Brčić, Marino ; Brnić, Josip

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 6th International Congress of Croatian Society of Mechanics / Smojver, Ivica ; Sorić, Jurica - Zagreb : Hrvatsko društvo za mehaniku (HDM), 2009

ISBN
978-953-7539-11-5

Skup
6th International Congress of Croatian Society of Mechanics

Mjesto i datum
Dubrovnik, Hrvatska, 30.09.2009. - 02.10.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
nanotubes; mechanics; temperature

Sažetak
Recently, experimental research carried out on carbon nanotubes proved that these molecular structures shrink with temperature increase. However, longitudinal and radial contractions are different. In structural mechanics approach nanotubes are modelled with beam finite elements. Since beam finite elements cannot be used to model anisotropic thermal shrinkage, some alternative procedure must be found out. Therefore, a new model is proposed that enables such simulations. Model is based on the truss elements that are introduced in each repetitive section of nanotube. Truss elements have different coefficients of thermal expansion than beam finite elements, what can be tuned to real nanotubes behaviour. Model is tested on one example and compared to the results obtained by other authors.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Temeljne tehničke znanosti

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