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首页> 外文期刊>Proceedings of the institution of mechanical engineers >Theoretical and experimental study of a novel microfabricated fibrillar structure
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Theoretical and experimental study of a novel microfabricated fibrillar structure

机译:一种新型微细纤维状结构的理论和实验研究

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摘要

Survival of species such as geckos, spiders, flies, and crickets crucially depends on the interaction between hundreds of thousands of hairs or setae on their feet. Recently, many efforts have been made to fabricate adhesive pads inspired by natural biological systems. Fibres developed from nano molding can mimic the hairs of these species' feet and act as a dry adhesive pad. In this study, for the nanocasting of nano fibres, several porous silicon structures with desired dimensional and morphological characteristics were made by an electrochemical etching system. The adhesive strengths of produced adhesive pads were measured about 0.07 N/cm2 in the normal direction and about 0.045 N/cm2 in the shear direction in contact with a glass surface. Besides the experimental work, a quantitative model has been developed to model van der Waals interactions in adhesive pads. The results from the theoretical model show consistency with experiments.
机译:壁虎,蜘蛛,苍蝇和等物种的生存关键取决于成千上万根头发或脚上刚毛之间的相互作用。近来,已经做出了许多努力来制造受自然生物系统启发的粘合垫。由纳米成型技术开发的纤维可以模仿这些物种脚部的毛发,并充当干燥的粘合垫。在这项研究中,对于纳米纤维的纳米浇铸,通过电化学刻蚀系统制备了具有所需尺寸和形态特征的几种多孔硅结构。在与玻璃表面接触的情况下,测量的粘合垫的粘合强度在法线方向上约为0.07N / cm 2,在剪切方向上约为0.045N / cm 2。除实验工作外,还开发了一种定量模型来对粘性垫中的范德华相互作用进行建模。理论模型的结果表明与实验一致。

著录项

  • 来源
  • 作者单位

    Department of Mechanical Engineering and New Technologies Research Center, Amirkabir University of Technology,Tehran, Iran;

    Department of Mechanical Engineering and New Technologies Research Center, Amirkabir University of Technology,Tehran, Iran;

    Department of Mechanical Engineering and New Technologies Research Center, Amirkabir University of Technology,Tehran, Iran;

    Department of Mechanical Engineering and New Technologies Research Center, Amirkabir University of Technology,Tehran, Iran;

    Department of Mechanical Engineering and New Technologies Research Center, Amirkabir University of Technology,Tehran, Iran;

    Department of Industrial Engineering, K.N. Toosi University of Technology, Iran;

    Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg,Virginia, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    dry adhesion; adhesive fibrillar system; biological mimic; electrochemical etching system;

    机译:干附着力粘合原纤维系统;生物模仿电化学蚀刻系统;

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