Rupture and recoil of bent-core liquid crystal filaments.

Rupture and recoil of bent-core liquid crystal filaments.
复制标题

弯芯液晶丝的断裂和反冲

DOI:
10.1039/c6sm00290k
复制
发表时间:
2016
期刊:
影响因子:
3.4
通讯作者:
A. Jakli
A. Jakli
中科院分区:
化学2区
文献类型:
--
作者:
S. M. Salili;T. Ostapenko;O. Kress;C. Bailey;W. Weissflog;K. Harth;A. Eremin;R. Stannarius;A. Jakli

文献摘要

参考文献

被引文献

相似文献

对独立液晶细丝的反冲过程进行了理论和实验研究。我们主要关注两个方面,即长丝的收缩速度和自发形成的波动不稳定性。在断裂时刻,细丝的屈曲与弹性杆的经典欧拉屈曲相似。针尖速度随纤维长度的减小而衰减。屈曲仿射的波长随着丝头的收缩而减小。与长丝总长度和比表面积的减小有关的能量增益主要通过纤维增厚过程中的层重排来耗散。回流到半月板只在反冲过程的最后阶段是相关的。介绍了一种定量描述长丝收缩速度的模型。这种反冲行为的动力学可以作为生物学相关细丝的模型。
The recoil process of free-standing liquid crystal filaments is investigated experimentally and theoretically. We focus on two aspects, the contraction speed of the filament and a spontaneously formed undulation instability. At the moment of rupture, the filaments buckle similarly to the classical Euler buckling of elastic rods. The tip velocity decays with decreasing filament length. The wavelength of buckling affinely decreases with the retracting filament tip. The energy gain related to the decrease of the total length and surface area of the filaments is mainly dissipated by layer rearrangements during thickening of the fibre. A flow back into the meniscus is relevant only in the final stage of the recoil process. We introduce a model for the quantitative description of the filament retraction speed. The dynamics of this recoil behaviour may find relevance as a model for biology-related filaments.
DOI: --
发表时间: 2015
期刊:
影响因子: --
作者:
Cuiyu Zhang;S. M. Salili;Nicholaus Diorio;W. Weissflog;A. Jákli
通讯作者: A. Jákli
由弯曲核心分子形成的流体纤维束。
DOI: 10.1103/physreve.81.031708
发表时间: 2010
期刊: Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子: --
作者:
C. Bailey;M. Murphy;A. Eremin;Wolfgang Weissflog;A. Jákli
通讯作者: A. Jákli
自由浮动的近晶薄膜。
DOI: 10.1002/cphc.201301183
发表时间: 2014
期刊: Chemphyschem : a European journal of chemical physics and physical chemistry
影响因子: --
作者:
K. May;K. Harth;T. Trittel;R. Stannarius
通讯作者: R. Stannarius
DOI: 10.1103/physreve.78.025302
发表时间: 2008-02
期刊: Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子: --
作者:
S. Nagahiro;Y. Hayakawa
通讯作者: S. Nagahiro;Y. Hayakawa
弯曲核心分子的液晶纤维。
DOI: 10.1103/physreve.67.051702
发表时间: 2003
期刊: Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子: --
作者:
A. Jákli;D. Krüerke;G. Nair
通讯作者: G. Nair