Adhesive contact of rough brushes; Beilstein Journal of Nanotechnology; Vol. 9, iss. 1
| Parent link: | Beilstein Journal of Nanotechnology Vol. 9, iss. 1.— 2018.— [P. 2405–2412] |
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| Autor principal: | |
| Autor corporatiu: | |
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| Sumari: | Title screen The adhesive contact between a rough brush-like structure and an elastic half-space is numerically simulated using the fast Fourier transform (FFT)-based boundary element method and the mesh-dependent detachment criterion of Pohrt and Popov. The problem is of interest in light of the discussion of the role of contact splitting in the adhesion strength of gecko feet and structured biomimetic materials. For rigid brushes, the contact splitting does not enhance adhesion even if all pillars of the brush are positioned at the same height. Introducing statistical scatter of height leads to a further decrease of the maximum adhesive strength. At the same time, the pull-off force becomes dependent on the previously applied compression force and disappears completely at some critical roughness. For roughness with a subcritical value, the pressure dependence of the pull-off force qualitatively follows the known theory of Fuller and Tabor with moderate modification due to finite size effect of the brush. |
| Idioma: | anglès |
| Publicat: |
2018
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| Matèries: | |
| Accés en línia: | https://doi.org/10.3762/bjnano.9.225 |
| Format: | Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663927 |
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| 200 | 1 | |a Adhesive contact of rough brushes |f Li Qiang, V. L. Popov | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: p. 2411 (27 tit.)] | ||
| 330 | |a The adhesive contact between a rough brush-like structure and an elastic half-space is numerically simulated using the fast Fourier transform (FFT)-based boundary element method and the mesh-dependent detachment criterion of Pohrt and Popov. The problem is of interest in light of the discussion of the role of contact splitting in the adhesion strength of gecko feet and structured biomimetic materials. For rigid brushes, the contact splitting does not enhance adhesion even if all pillars of the brush are positioned at the same height. Introducing statistical scatter of height leads to a further decrease of the maximum adhesive strength. At the same time, the pull-off force becomes dependent on the previously applied compression force and disappears completely at some critical roughness. For roughness with a subcritical value, the pressure dependence of the pull-off force qualitatively follows the known theory of Fuller and Tabor with moderate modification due to finite size effect of the brush. | ||
| 461 | |t Beilstein Journal of Nanotechnology | ||
| 463 | |t Vol. 9, iss. 1 |v [P. 2405–2412] |d 2018 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a adhesion | |
| 610 | 1 | |a brushes | |
| 610 | 1 | |a contact splitting | |
| 610 | 1 | |a pressure sensitive adhesion | |
| 610 | 1 | |a roughness | |
| 610 | 1 | |a адгезия | |
| 610 | 1 | |a граничные элементы | |
| 610 | 1 | |a сцепление | |
| 610 | 1 | |a контакты | |
| 610 | 1 | |a шероховатости | |
| 700 | 0 | |a Li Qiang | |
| 701 | 1 | |a Popov |b V. L. |c physicist |c leading researcher of Tomsk Polytechnic University, Doctor of physical and mathematical sciences |f 1959- |g Valentin Leonidovich |3 (RuTPU)RU\TPU\pers\35915 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа химических и биомедицинских технологий (ИШХБМТ) |c (2017- ) |3 (RuTPU)RU\TPU\col\23537 |
| 801 | 2 | |a RU |b 63413507 |c 20210318 |g RCR | |
| 856 | 4 | |u https://doi.org/10.3762/bjnano.9.225 | |
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