Bioinspired dual-stiffness origami.

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Presentation transcript:

Bioinspired dual-stiffness origami. Bioinspired dual-stiffness origami. (A) Pictures of a Brachythemis contaminata and of its hindwing nodus. Blue, green, and red indicate the presence of resilin, less-sclerotized cuticle, and highly sclerotized cuticle, respectively [images adapted from (29)]. (B) Structure of the bioinspired dual-stiffness origami consisting of prestretched elastomeric membranes, akin to resilin joints of insect wings, sandwiched between rigid tiles, akin to cuticles of insect wings. (C) Young’s moduli of the elastomeric membrane and the rigid tiles are the same as those of resilin and cuticle. (D) The rigid plate and the adhesive foil are bonded together into a single composite structure. (E) The composite is laser-machined to engrave the folding pattern (here, two transversal folds) and to remove the adhesive foil along the folding pattern. (F) Two composite structures are bonded on a prestretched elastomer membrane. Stefano Mintchev et al. Sci. Robotics 2018;3:eaau0275 Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works