ELASTIC DAMPER BASED ON THE CARBON NANOTUBE BUNDLE

Mechanical response of the carbon nanotube bundle to uniaxial and biaxial lateral compression followed by unloading is modeled under plane strain conditions. The chain model with a reduced number of degrees of freedom is employed with high efficiency. During loading, two critical values of strain ar...

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Published inFacta Universitatis. Series: Mechanical Engineering Vol. 18; no. 1; pp. 1 - 012
Main Authors Rysaeva, Leysan Kh, Korznikova, Elena A., Murzaev, Ramil T., Abdullina, Dina U., Kudreyko, Aleksey A., Baimova, Julia A., Lisovenko, Dmitry S., Dmitriev, Sergey V.
Format Journal Article
LanguageEnglish
Published Nis University of Nis 01.04.2020
University of Niš
Subjects
Bundling
Carbon
Carbon nanotubes
Compressive properties
Hysteresis loops
Mechanical analysis
Period doubling
Phase transitions
Plane strain
Stress-strain curves
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Summary:Mechanical response of the carbon nanotube bundle to uniaxial and biaxial lateral compression followed by unloading is modeled under plane strain conditions. The chain model with a reduced number of degrees of freedom is employed with high efficiency. During loading, two critical values of strain are detected. Firstly, period doubling is observed as a result of the second order phase transition, and at higher compressive strain, the first order phase transition takes place when carbon nanotubes start to collapse. The loading-unloading stress-strain curves exhibit a hysteresis loop and, upon unloading, the structure returns to its initial form with no residual strain. This behavior of the nanotube bundle can be employed for the design of an elastic damper.
ISSN:0354-2025
2335-0164
DOI:10.22190/FUME200128011R