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Nano Research

Article Title

Coordinated buckling of thick multi-walled carbon nanotubes under uniaxial compression

Keywords

Carbon nanotubes, buckling, uniaxial compression, rippling

Abstract

Using a generalized quasi-continuum method, we characterize the post-buckling morphologies and energetics of thick multi-walled carbon nanotubes (MWCNTs) under uniaxial compression. Our simulations identify for the first time evolving post-buckling morphologies, ranging from asymmetric periodic rippling to a helical diamond pattern. We attribute the evolving morphologies to the coordinated buckling of the constituent shells. The post-buckling morphologies result in significantly reduced effective moduli that are strongly dependent on the aspect ratio. Our simulation results provide fundamental principles to guide the future design of high-performance, MWCNT-based nanodevices.

Graphical Abstract

Publisher

Tsinghua University Press

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