کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
831304 | 908102 | 2011 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: New approach to model the buckling and stable length of multi walled carbon nanotube probes near graphite sheets New approach to model the buckling and stable length of multi walled carbon nanotube probes near graphite sheets](/preview/png/831304.png)
Modeling the buckling of multi walled carbon nanotube (MWCNT) probes/actuators in the vicinity of thin and thick graphite has been carried out for the first time via two analytical approximation methods as well as a numerical one. A hybrid nano-scale continuum model based on Lennard-Jones potential is applied to simulate the intermolecular force-induced deflection of MWCNT. The critical values of MWCNT tip deflection and MWCNT-graphite attraction at the onset of the instability are computed. In addition, minimum nanotube-graphite initial gap and stable length of freestanding CNT are determined as basic parameters for engineering applications and nano-devices design. The stable length of MWCNT is determined as a function of its geometrical and material characteristics, initial gap and number of graphene layers.
Journal: Materials & Design - Volume 32, Issue 5, May 2011, Pages 2949–2955