Journal
JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME
Volume 128, Issue 3, Pages 419-427Publisher
ASME
DOI: 10.1115/1.2203102
Keywords
nanotube; buckling; van der Waals force; thermal effect; torsional load
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The buckling of multiwalled carbon nanotubes under torsional load coupling with temperature change is researched. The effects of torsional load. temperature change. surrounding elastic medium, and van der Waals forces between tire inner and outer nanotubes are taken into account at the same time. Using continuum mechanics, air elastic multishell model with thermal effect is presented for buckling of a multiwalled carbon nanotube embedded in art elastic matrix under thermal environment and torsional load. Based on the model. numerical results for the general case are obtained for the thermal effect on buckling of a multiwalled carbon nanotube under torsional load. It is shown that the buckling torque of a multiwalled carbon nanotube under a certain value of temperature change is dependent on the wave number of torsional buckling modes, and a conclusion is drawn that at room or lower temperature the critical torsional load for infinitesimal buckling of a multiwalled carbon nanotube increases as tire value of temperature change increases. while at temperature higher than room temperature the critical torsional load for infinitesimal buckling of a multiwalled carbon nanotube decreases as the value of temperature change increases.
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