Tensile strength of carbon nanotubes under realistic temperature and strain rate

By Chenyu Wei, Kyeongjae Cho, D. Srivastava. 2002

214 citations recorded by the source corpus.

Strain rate and temperature dependence of the tensile strength of single-wall carbon nanotubes has been investigated with molecular dynamics simulations. The tensile failure or yield strain is found to be strongly dependent on the temperature and strain rate. A transition state theory based predictive model is developed for the tensile failure of nanotubes. Based on the parameters fitted from high-strain rate and temperature dependent molecular dynamics simulations, the model predicts that a defect free micrometer long single-wall nanotube at 300 K, stretched with a strain rate of 1%/hour, fails at about 9 plus or minus 1% tensile strain. This is in good agreement with recent experimental findings.

Subfields: Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/96494cd49387c929a28554919286e0e4d696b80f

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In Materials Chemistry

1. Kim-Meow Liew
2. R. Moon
3. Ashlie Martini
4. Xiawa Wu
5. Xiaoqiao He
6. C. Wong
7. Lu-Wen Zhang
8. Z. Lei

Citations in the corpus

• Tensile strength of Iβ crystalline cellulose predicted by molecular dynamics simulation (2014, result): “ultimate properties increase with strain rate, which is in agreement with previous simulation of various nanomaterials (Wei et al. 2003; Liang and Zhou 2004; Koh et al. 2005; Wu 2006).”
• On the study of elastic and plastic properties of multi-walled carbon nanotubes under axial tension using molecular dynamics simulation (2004, background): “Yakobson [15] first predicted a 90 rotation of a C–C bond during the Stone–Wales bond rotation where two pentagons and two heptagons are converted into 5-7-7-5 defects [16–19] during the extension.”
• NANOTUBES AS POLYMERS (2009, unknown): “[16,23,262,263].”