Coordinated buckling of thick multi-walled carbon nanotubes under uniaxial compression
Carbon nanotubes, buckling, uniaxial compression, rippling
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.
Tsinghua University Press
Xu Huang,Hongyan Yuan,K. Jimmy Hsia,Sulin Zhang, Coordinated buckling of thick multi-walled carbon nanotubes under uniaxial compression. NanoRes.2010, 3: 32–42