Article Title

Modeling frequency- and temperature-invariant dissipative behaviors of randomly entangled carbon nanotube networks under cyclic loading

Authors

Xiaodong Yang, School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China School of Engineering, Brown University, Providence, RI 02912, USA
Pengfei He, School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China
Huajian Gao, School of Engineering, Brown University, Providence, RI 02912, USA

Keywords

Carbon nanotubes, unstable detachments and attachments, van der Waals interactions, triboelastic

Abstract

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.

Graphical Abstract

DOI

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

Publisher

Tsinghua University Press

Recommended Citation

Xiaodong Yang,Pengfei He,Huajian Gao, Modeling frequency- and temperature-invariant dissipative behaviors of randomly entangled carbon nanotube networks under cyclic loading. NanoRes.2011, 4(12): 1191–1198