Abstract
The nonlinear atomistic interactions usually involve softening behavior. Instability resulting directly from this softening are called the material instability, while those unrelated to this softening are called the structural instability. We use the finite-deformation shell theory based on the interatomic potential to show that the tension instability of single-wall carbon nanotubes is the material instability, while the compression and torsion instabilities are structural instability.
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Wu, J., Hwang, K.C., Song, J. et al. Material and structural instabilities of single-wall carbon nanotubes. Acta Mech Sin 24, 285–288 (2008). https://doi.org/10.1007/s10409-008-0146-1
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DOI: https://doi.org/10.1007/s10409-008-0146-1