Research Article

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2011, 4(12): 1191–1198

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https://doi.org/10.1007/s12274-011-0169-y

Modeling Frequency- and Temperature-Invariant Dissipative Behaviors of Randomly Entangled Carbon Nanotube Networks under Cyclic Loading

Xiaodong Yang1,2, Pengfei He1, and Huajian Gao2()

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1School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China2School of Engineering, Brown University, Providence, RI 02912, USA

Keywords: KEYWORDS Carbon nanotubes, unstable detachments and attachments, van der Waals interactions, triboelastic
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ABSTRACT Recent experiments have shown that entangled networks of carbon nanotubes exhibit temperature- and frequency-invariant dissipative behaviors under cyclic loading. We have performed coarse-grained molecular dynamics simulations which show that these intriguing phenomena can be attributed to the unstable attachments/detachments between individual carbon nanotubes induced by van der Waals interactions. We show that this behavior can be described by a triboelastic constitutive model. This study highlights the promise of carbon nanomaterials for energy absorption and dissipation under extreme conditions.
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Modeling Frequency- and Temperature-Invariant Dissipative Behaviors of Randomly Entangled Carbon Nanotube Networks under Cyclic Loading. Nano Res. 2011, 4(12): 1191–1198 https://doi.org/10.1007/s12274-011-0169-y

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