Berlin 2018 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 20: Statistical Physics of Biological Systems DY (joint session DY/BP)

BP 20.5: Vortrag

Mittwoch, 14. März 2018, 11:00–11:15, BH-N 333

Active textiles with Janus filaments — •Len Pismen and Andrei Zakharov — Technion - Israel Institute of Technology

We describe reshaping of active textiles actuated by bending of Janus filaments comprising both active and passive components. A great variety of shapes, determined by minimising the overall energy of the fabric, can be produced by varying bending directions determined by the orientation of Janus filaments. Under certain conditions, alternative equilibrium states, one absolutely stable and the other metastable coexist, and their relative energy may flip its sign as system parameters, such as the extension upon actuation, change. A snap-through reshaping in a specially structured textile reproduces the Venus flytrap effect.