Mechanical behavior of carbon nanotubes in the rippled and buckled phase
2015 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 117, no 8, 084318- p.Article in journal (Refereed) Published
We have studied the mechanical behavior of multi-walled carbon nanotubes for bending strains beyond the onset for rippling and buckling. We found a characteristic drop in the bending stiffness at the rippling and buckling onset and the relative retained stiffness was dependent on the nanotube dimensions and crystallinity. Thin tubes are more prone to buckle, where some lose all of their bending stiffness, while thicker tubes are more prone to ripple and on average retain about 20\% of their bending stiffness. In defect rich tubes the bending stiffness is very low prior to rippling but these tubes retain up to 70\% of their initial bending stiffness.
Place, publisher, year, edition, pages
2015. Vol. 117, no 8, 084318- p.
carbon nanotubes, Young's modulus, bending stiffness, buckling, rippling, nonlinear behavior
Research subject Physics
IdentifiersURN: urn:nbn:se:kau:diva-35340DOI: 10.1063/1.4913701ISI: 000351132500050OAI: oai:DiVA.org:kau-35340DiVA: diva2:793542
FunderSwedish Research Council, 2010-4324