TL;DR
This paper explores how nematic elastomer beams and stripes move and morph due to phase transitions, analyzing how their gait and speed depend on material rigidity and friction.
Contribution
It introduces a detailed analysis of nemato-elastic crawling mechanisms considering different configurations and their dependence on physical parameters.
Findings
Crawling gait varies with flexural rigidity and substrate friction.
Morphing behavior occurs due to buckling during motion.
Speed and gait are influenced by nematic order configuration.
Abstract
A propagating "beam" triggering a local phase transition in a nematic elastomer sets it into a crawling motion, which may morph due to buckling. We consider the motion of the various configurations of slender rods and thin stripes with both uniform and splayed nematic order in cross-section, and detect the dependence of the gait and speed on flexural rigidity and substrate friction.
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