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  Rupture and recoil of bent-core liquid crystal filaments.

Salili, S. M., Ostapenko, T., Kress, O., Bailey, C., Weissflog, W., Harth, K., et al. (2016). Rupture and recoil of bent-core liquid crystal filaments. Soft Matter, 12(21), 4725-4730. doi:10.1039/c6sm00290k.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-1952-9 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-3A31-4
Genre: Journal Article

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 Creators:
Salili, S. M., Author
Ostapenko, Tanya1, Author              
Kress, Oliver1, Author              
Bailey, C., Author
Weissflog, W., Author
Harth, K., Author
Eremin, A., Author
Stannarius, R., Author
Jalki, A., Author
Affiliations:
1Group Dynamics of fluid and biological interfaces, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063300              

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 Abstract: 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.

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Language(s): eng - English
 Dates: 2016-04-082016-06-07
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1039/c6sm00290k
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Title: Soft Matter
Source Genre: Journal
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Pages: - Volume / Issue: 12 (21) Sequence Number: - Start / End Page: 4725 - 4730 Identifier: -