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    Shock absorption by multilayer carbon nanotube packings

    Alexander V. Savin*

    • *Contact author: asavin@chph.ras.ru

    Phys. Rev. B 112, 245406 – Published 4 December, 2025

    DOI: https://doi.org/10.1103/s1pk-69ln

    Abstract

    The propagation of transverse impact energy in a multilayer packing (in an array) of parallel single-walled carbon nanotubes has been simulated. It has been shown that such nanotube arrays are effective shock absorbers. The depreciation effect is most pronounced for packings of nanotubes with a diameter of 2.7 to 3.9 nm. Here, part of the impact energy is absorbed due to the transfer of the packing to a higher-energy stationary state in which part of the nanotubes is in a collapsed state. The impact impulse reaches the other edge of the packing most weakened and distributed over time. For nanotubes with a smaller diameter, the compression of the array occurs elastically without energy accumulation, and for nanotubes with a larger diameter with energy release.

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