A Finite Element Model of a Carbon Nanotube for Thermally Variable Environments (CROSBI ID 567875)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Čanađija, Marko ; Brčić, Marino ; Brnić, Josip
engleski
A Finite Element Model of a Carbon Nanotube for Thermally Variable Environments
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.
nanotubes; mechanics; temperature
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Podaci o prilogu
2009.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 6th International Congress of Croatian Society of Mechanics
Smojver, Ivica ; Sorić, Jurica
Zagreb: Hrvatsko društvo za mehaniku (HDM)
978-953-7539-11-5
Podaci o skupu
6th International Congress of Croatian Society of Mechanics
predavanje
30.09.2009-02.10.2009
Dubrovnik, Hrvatska