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| Content Provider | IET Digital Library |
|---|---|
| Author | Pang, Miao Wang, Peng Zhang, Yongqiang |
| Abstract | This work studies the wave propagation in embedded single-walled carbon nanotubes (CNTs) conveying fluid and placed in multi-physical fields based on the non-local higher-order strain gradient model with surface effect considered. The nanotubes are modelled as Timoshenko beams. Utilising Hamilton's principle, the governing equations of wave motion in CNTs are derived. The solution for the phase velocity of wave motion is obtained, which can not only consider the stiffness softening effect but also reflect the stiffness enhancement effect of scale parameter observed by experiments. The numerical simulations are conducted to compare the results on the basis of different order non-local strain gradient models. It is shown that the behaviours of wave propagation based on the non-local higher-order strain gradient models are quite different from those based on the classical continuum model. In addition, the scale and surface effects and influences of various external factors including inner flow, surrounding medium, temperature field, and magnetic field on the wave dispersion are investigated. |
| Starting Page | 922 |
| Ending Page | 927 |
| Page Count | 6 |
| Volume Number | 14 |
| e-ISSN | 17500443 |
| Issue Number | Issue 8, Jul (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/mnl/14/8 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/mnl.2018.5433 |
| Journal | Micro & Nano Letters |
| Publisher Date | 2019-07-24 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Beams (structures) Carbon Nanotubes Continuum Mechanics Deformation Deformation And Plasticity Elastic Constants Elasticity Elasticity And Anelasticity Embedded Single-walled Carbon Nanotube Conveying Fluid Fluid-conveying Nanotube Fullerene-related Material Higher-order Strain Gradient Model Mechanical Stability Multiphysical Field Nonlocal Strain Gradient Model Numerical Analysis Numerical Simulation Phase Velocity Pipe Flow Plasticity And Creep Softening Stiffness Softening Effect Structure of Fullerenes Timoshenko Beam Vibrations Wave Motion Wave Propagation |
| Content Type | Text |
| Resource Type | Article |
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