Axial and torsional buckling analysis of single- and multi-walled carbon nanotubes : finite element comparison between armchair and zigzag typesRahmani Ahranjani, Ramin; Antonov, MaksimSN Applied Sciences2019 / art. 1134, 13 p. : ill https://doi.org/10.1007/s42452-019-1190-0