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首页> 外文期刊>Composite Structures >Nanoparticle delivery via stocky single-walled carbon nanotubes: A nonlinear-nonlocal continuum-based scrutiny
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Nanoparticle delivery via stocky single-walled carbon nanotubes: A nonlinear-nonlocal continuum-based scrutiny

机译：通过储存的单壁碳纳米管输送纳米颗粒：基于非线性-非局部连续介质的检查

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摘要

Excellent mechanical properties plus to the good biocompatibility of single-walled carbon nanotubes (SWCNTs) are offering them as efficient nanodevices for delivering of nanoparticles. Due to the friction between the outer surface of the nanoparticle and the inner surface of the SWCNTs, mass weight of the nanoparticle, and the interactional van der Waals (vdW) forces between the constitutive atoms of the nanoparticle and those of the SWCNT, both longitudinal and transverse waves propagate within the SWCNT. Herein, such vibrations in stocky SWCNTs are of concern in the context of nonlinear-nonlocal continuum theory of Eringen. Based on the Rayleigh, Timoshenko, and higher-order beam theories, the dimensionless equations of motion are constructed and then numerically solved. The effects of the mass weight and velocity of the nanoparticle, radius and length of the SWCNT, the abovementioned vdW forces, and the small-scale parameter on the maximum displacements and forces within the SWCNT are exclusively explored. Additionally, the limitations of both the linear and local analyses for the problem under study are discussed.
机译：出色的机械性能以及单壁碳纳米管（SWCNT）的良好生物相容性使它们成为传递纳米颗粒的有效纳米器件。由于纳米颗粒的外表面和SWCNT的内表面之间的摩擦，纳米颗粒的质量以及纳米颗粒和SWCNT的本构原子之间的相互作用范德华力（vdW）都是纵向的横波在SWCNT内传播。在此，在艾灵根的非线性-非局部连续体理论的背景下，高耸的SWCNT中的此类振动令人关注。基于Rayleigh，Timoshenko和高阶光束理论，构造了无量纲的运动方程，然后进行了数值求解。专门研究了纳米粒子的质量重量和速度，SWCNT的半径和长度，上述vdW力以及小尺度参数对SWCNT内最大位移和力的影响。此外，还讨论了所研究问题的线性分析和局部分析的局限性。

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