Large deflections mechanical analysis of a suspended single-wall carbon nanotube under thermoelectrical loading

Assaf Ya'akobovitz, Slava Krylov, Yael Hanein

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Following the recent progress in integrating single-wall carbon nanotubes (SWCNTs) into silicon-based micro-electromechanical systems (MEMS), new modeling tools are needed to predict their behavior under different loads, including thermal, electrical and mechanical. In the present study, the mechanical behavior of SWCNTs under thermoelectrical loading is analyzed using a large deflection geometrically nonlinear string model. The effect of the resistive heating was found to have a substantial influence on the SWCNTs behavior, including significant enhancement of the strain (up to the millistrains range) and buckling due to the thermal expansion. The effect of local buckling sites was also studied and was found to enhance the local strain. The theoretical and numerical results obtained in the present study demonstrate the importance of resistive heating in the analysis of SWCNTs and provide an additional insight into the unique mechanics of suspended SWCNTs.

Original languageEnglish
Article number190360
JournalJournal of Nanomaterials
Volume2011
DOIs
StatePublished - 26 Apr 2011
Externally publishedYes

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