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首页> 外文期刊>International journal of nanomechanics science and technology >SURFACE EFFECTS ON NONLOCAL CRITICAL BUCKLING TEMPERATURE OF NANOTUBES
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SURFACE EFFECTS ON NONLOCAL CRITICAL BUCKLING TEMPERATURE OF NANOTUBES

机译：纳米管非局部临界屈曲温度的表面效应

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摘要

Nanotechnology is an emerging technology involving the characterization, design, production, and op-plication of materials, structures, and systems through the control of matter on the nanometer length scale, that is, at the level of atoms and molecules. Nanotubes are being investigated for use as latent materials for drug carriers. However, the surface effects cannot be ignored when drugs or other functional materials, such as nickel or silver, adhere to the surfaces of the nanotube. In this paper, the thermal buckling properties of nanotubes, while accounting for surface effects, are studied using the nonlocal Timoshenko beam model. The influence of the surface elasticity modulus, residual surface stress, nonlocal parameter, modenumber, and aspect ratio are investigated in detail. The results show that the critical buckling temperature is significantly affected by the surface material, nonlocal parameter, buckling mode, and aspect ratio. Plots illustrating such deviations are given to support the present work.
机译：纳米技术是一种新兴技术，涉及通过控制纳米长度范围（即原子和分子水平）的物质来表征，设计，生产和应用材料，结构和系统。纳米管正在研究用作药物载体的潜在材料。但是，当药物或其他功能性材料（例如镍或银）粘附到纳米管表面时，表面效应不可忽略。在本文中，使用非局部Timoshenko束模型研究了纳米管的热屈曲特性，同时考虑了表面效应。详细研究了表面弹性模量，残余表面应力，非局部参数，模数和纵横比的影响。结果表明，临界屈曲温度受表面材料，非局部参数，屈曲模式和长宽比的影响很大。给出了说明这种偏差的图以支持当前的工作。

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