Research Papers

Dynamic Deflection of a Single-Walled Carbon Nanotube Under Ballistic Impact Loading

[+] Author and Article Information
Demetris Pentaras1

Department of Mechanical Engineering and Materials Science and Engineering,  Cyprus University of Technology, 3041 Limassol, Cyprus; Department of Ocean and Mechanical Engineering,  Florida Atlantic University, Boca Raton, FL 33431-0991demetris.pentaras@cut.ac.cy

Isaac Elishakoff

Department of Ocean and Mechanical Engineering,  Florida Atlantic University, Boca Raton, FL 33431-0991elishako@fau.edu


Corresponding author.

J. Nanotechnol. Eng. Med 2(4), 041002 (Mar 30, 2012) (4 pages) doi:10.1115/1.4005676 History: Received May 09, 2011; Revised July 22, 2011; Published March 30, 2012

The dynamic deflections of geometrically different single-walled carbon nanotubes are determined under various high-velocity impacts and for different positions at which ballistic impact is applied. Elastic beam model is applied to study the dynamic deflection of single-walled carbon nanotubes for two cases of boundary conditions, namely to clamped–clamped and clamped-free single-walled carbon nanotubes. Moreover, we examine the relationship between the single-walled carbon nanotube radius, the relative position at which the ballistic impact takes place, the speed of the object (e.g., bullet) that strikes the nanotube, and the deflection of the nanotube for a specific bullet size and shape as was used by recent study in the literature.

Copyright © 2011 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 1

Bullet released at various heights h of (a) SWCNT that is clamped at one end and free at the other and (b) SWCNT that is clamped at both ends

Grahic Jump Location
Figure 2

Maximum deflections Δ of clamped-free SWCNT at points A and B, angle of rotation θ at end B after a strike by bullet with speed v, and maximum force Pmax

Grahic Jump Location
Figure 3

Dynamic deflection ΔC-C of clamped–clamped SWCNT




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