Critical speed and free vibration analysis of spinning 3D single-walled carbon nanotubes resting on elastic foundationsMohammad Mostafa Barooti, Hamed Safarpour and Majid GhadiriEur. Phys. J. Plus, 132 1 (2017) 6DOI: https://doi.org/10.1140/epjp/i2017-11275-5