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Strain Reversal in Actuated Origami Structures

Research output: Contribution to journalArticle

Original languageEnglish
JournalPhysical Review Letters
DateIn preparation - 2018
DateAccepted/In press (current) - 24 May 2019

Abstract

Origami in engineering is gaining interest for its potential as deployable or shape-adaptive struc-tures. Practical systems could employ a network of actuators distributed across the structure toinduce these deformations. Selecting the actuator locations requires an understanding of how theeffect of a single actuator propagates spatially in an origami structure. We combine experimentalresults, Finite Element Analysis (FEA), and reduced-order bar-and-hinge models, to show how alocalised static actuation decays elastically in Miura-ori tubes and sheets. We observe a strain re-versal, before the origami structure springs back to the initial configuration further away from thepoint of actuation. For the Miura-ori tubes the structural response is predominantly governed bythe ratio of the fold and in-plane facet stiffness, while for the Miura-ori sheets this is the ratio ofthe fold and facet bending bending stiffness.

    Structured keywords

  • Bristol Composites Institute ACCIS

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