Modeling the Auxetic Transition for Carbon Nanotube Sheets

Details Modeling the Auxetic Transition for Carbon Nanotube Sheets Modeling the Auxetic Transition for Carbon Nanotube Sheets

2009-03-17

arxiv.org/abs/0903.2892v1

Phys. Rev. B 78, 115408 (2008)

Physics

Condensed Matter

Materials Science

This is an enlarged version of our previuos work: Sign Change of Poisson's Ratio for Carbon Nanotube Sheets, L. J. Hall, V. R.

Scientific paper

10.1103/PhysRevB.78.115408

A simple model is developed to predict the complex mechanical properties of carbon nanotube sheets (buckypaper) [Hall \textit{et al.}, \textit{Science} \textbf{320} 504 (2008)]. Fabricated using a similar method to that deployed for making writing paper, these buckypapers can have in-plane Poisson's ratios changed from positive to negative, becoming auxetic, as multiwalled carbon nanotubes are increasingly mixed with single-walled carbon nanotubes. Essential structural features of the buckypapers are incorporated into the model: isotropic in-plane mechanical properties, nanotubes preferentially oriented in the sheet plane, and freedom to undergo stress-induced elongation by both angle and length changes. The expressions derived for the Poisson's ratios enabled quantitative prediction of both observed properties and remarkable new properties obtainable by structural modification.

Affiliated with

Also associated with

No associations

Rating

Modeling the Auxetic Transition for Carbon Nanotube Sheets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Modeling the Auxetic Transition for Carbon Nanotube Sheets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modeling the Auxetic Transition for Carbon Nanotube Sheets will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-490979