Dresden 2006 – wissenschaftliches Programm

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CPP: Chemische Physik und Polymerphysik

CPP 27: POSTER Polymer Physics and Materials

CPP 27.14: Poster

Donnerstag, 30. März 2006, 17:00–19:00, P2

Mechanical Properties of Free Standing Liquid Filaments — •Alexandru Nemes, Alexey Eremin, and Ralf Stannarius — Institute of Experimental Physics, University of Magdeburg, Universitätsplatz 2, D-39106 Magdeburg, Germany

Stable free standing filaments with slenderness ratios (length to diameter ratio) of more than 1000 can be prepared in some mesophases of liquid crystals. In our work, the mechanical properties of such structures are described. With a special excitation technique, we pluck the filaments and excite damped oscillations. Experimental relaxation times and oscillation frequencies of such liquid chords are discussed within a model that describes the damped vibrations of a liquid string under the influences of surface tension, inertial, viscous, and elastic forces. Reference: R. Stannarius, A. Nemeş and A. Eremin, Phys. Rev. E, 72 020702(R) (2005)