Transitional Failure of Carbon Nanotube Systems under a Combination ofTension and Torsion
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- Transitional Failure of Carbon Nanotube Systems under a Combination ofTension and Torsion
- This research was supported by Basic Science Research Program throughthe National Research Foundation of Korea (NRF) funded by the Ministryof Education, Science and Technology (2011-0027165). The author thanksProfessor Susan B. Sinnott of University of Florida for her help inpreparing this paper.
- Transitional failure envelopes of single- and double-walled carbon nanotubes under combined tension-torsion are predicted using classical molecular dynamics simulations. The observations reveal that while the tensile failure load decreases with combined torsion, the torsional buckling moment increases with combined tension. As a result, the failure envelopes under combined tension-torsion are definitely different from those under pure tension or torsion. In such combined loading, there is a multitude of failure modes (tensile failure and torsional buckling), and the failure consequently exhibits the feature of transitional failure envelopes. In addition, the safe region of double-walled carbon nanotubes is significantly larger than that of single-walled carbon nanotubes due to the differences in the onset of torsional buckling.
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- Jeong, Byeong-Woo
- JOURNAL OF NANOMATERIALS
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- Rep.of Korea
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- Development and applications of multiscale computational simulation techniques for the design of hybrid carbon nanomaterials
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