How does roughness kill adhesion?
How does roughness kill adhesion?
复制标题
粗糙度如何消除粘附力?
DOI:
10.1016/j.jmps.2023.105465
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发表时间:
2023
影响因子:
5.3
通讯作者:
Afferrante L
中科院分区:
文献类型:
--
作者:
Afferrante L
It is well-known that adhesion is strongly influenced by surface roughness. Nevertheless, the literature currently contains an ongoing debate regarding which roughness scales are primarily responsible for adhesion loss. In this study, we aim to contribute to this debate by conducting numerical simulations on self-affine fractal profiles with varying fractal dimensions. Our results reveal that the long-wavelength portion of the roughness spectrum plays a crucial role in killing adhesion when considering profiles with Hurst exponent H> 0. 5. Conversely, for profiles with H< 0. 5, results show a different trend, indicating that adhesive stickiness is also influenced by short wavelength roughness. These findings are corroborated by our recent experimental observations. In such case, adhesive hysteresis and pull-off force exhibit a continuous decrease with increasing roughness scales. However, for H> 0. 5, the pull-off force converges towards a finite value as the magnification increases.
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影响因子:
2.4
作者:
L. A. Thimons;A. Gujrati;A. Sanner;Lars Pastewka;T. Jacobs
通讯作者:
L. A. Thimons;A. Gujrati;A. Sanner;Lars Pastewka;T. Jacobs
DOI:
--
发表时间:
2018
期刊:
The journal of adhesion
影响因子:
--
作者:
G. Violano;L. Afferrante;A. Papangelo;M. Ciavarella
通讯作者:
M. Ciavarella
DOI:
10.1073/pnas.1913126116
发表时间:
2019-12-17
影响因子:
11.1
作者:
Dalvi, Siddhesh;Gujrati, Abhijeet;Jacobs, Tevis D. B.
通讯作者:
Jacobs, Tevis D. B.
影响因子:
6.2
作者:
G. Violano;L. Afferrante
通讯作者:
L. Afferrante
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
J. Joe;M. Scaraggi;J. Barber
通讯作者:
J. Barber