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Surface Morphing of Geometrically Patterned Active Skins

Published online by Cambridge University Press:  23 March 2020

Yujin Park  and
Kenneth J. Loh Open the ORCID record for Kenneth J. Loh [Opens in a new window]
Yujin Park
Affiliation:
Materials Science and Engineering Program, University of California San Diego
Kenneth J. Loh*
Affiliation:
Materials Science and Engineering Program, University of California San Diego Department of Structural Engineering, University of California San Diego
*
*Corresponding author e-mail: [email protected]

Abstract

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Nature is ripe with biological organisms that can interact with its surroundings to continuously morph their surface texture. Many attempts have been made to optimize artificial surfaces depending on operational needs; however, most of these architected materials only focus on enhancing a specific material property or functionality. This study introduces a new class of instability-induced morphable structures, herein referred to as “Active Skins”, which enables on-demand, reversible, surface morphing through buckling-induced feature deployment. By taking advantage of a preconceived auxetic unit cell geometrical design, mechanical instabilities were introduced to facilitate rapid out-of-plane deformations when in-plane strains are applied. Here, these notches were introduced at judiciously chosen locations in an array of unit cells to elicit unique patterns of out-of-plane deformations to pave way for controlling bulk Active Skin behavior. These purposefully designed imperfections were employed for selectively actuating them for applications ranging from camouflage to surface morphing to soft robotic grippers.

Keywords

biomimeticactuationpolymerresponsivestress/strain relationship
Type
Articles
Information
MRS Advances , Volume 5 , Issue 14-15: Soft Materials and Biomaterials , 2020 , pp. 743 - 750
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Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
Copyright © Materials Research Society 2020

References

Rafsanjani, A., Zhang, Y. R., Liu, B. Y., Rubinstein, S. M., and Bertoldi, K., "Kirigami skins make a simple soft actuator crawl," (in English), Science Robotics , vol. 3, no. 15, Feb 21 2018.CrossRefGoogle Scholar
Domel, A. G., Saadat, M., Weaver, J. C., Haj-Hariri, H., Bertoldi, K., and Lauder, G. V., "Shark skin-inspired designs that improve aerodynamic performance," J R Soc Interface , vol. 15, no. 139, Feb 2018.CrossRefGoogle ScholarPubMed
Dean, B. and Bhushan, B., "Shark-skin surfaces for fluid-drag reduction in turbulent flow: a review," Philos Trans A Math Phys Eng Sci , vol. 368, no. 1929, pp. 4775-806, Oct 28 2010.CrossRefGoogle ScholarPubMed
Garcia-Mayoral, R. and Jimenez, J., "Drag reduction by riblets," Philos Trans A Math Phys Eng Sci , vol. 369, no. 1940, pp. 1412-27, Apr 13 2011.CrossRefGoogle ScholarPubMed
Bhushan, B. and Jung, Y. C., "Natural and biomimetic artificial surfaces for superhydrophobicity, self-cleaning, low adhesion, and drag reduction," Progress in Materials Science , vol. 56, no. 1, pp. 1-108, 2011.CrossRefGoogle Scholar
Gao, H., Wang, X., Yao, H., Gorb, S., and Arzt, E., "Mechanics of hierarchical adhesion structures of geckos," Mechanics of Materials , vol. 37, no. 2-3, pp. 275-285, 2005.CrossRefGoogle Scholar
Das, S.et al., "Stick-slip friction of gecko-mimetic flaps on smooth and rough surfaces," J R Soc Interface , vol. 12, no. 104, Mar 6 2015.CrossRefGoogle ScholarPubMed
Siefert, E., Reyssat, E., Bico, J., and Roman, B., "Bio-inspired pneumatic shape-morphing elastomers," Nat Mater , vol. 18, no. 1, pp. 24-28, Jan 2019.CrossRefGoogle ScholarPubMed
Abdullah, A. M., Li, X., Braun, P. V., Rogers, J. A., and Hsia, K. J., "Self-Folded Gripper-Like Architectures from Stimuli-Responsive Bilayers," Adv Mater , vol. 30, no. 31, p. e1801669, Aug 2018.CrossRefGoogle Scholar
Mao, Y.et al., "3D Printed Reversible Shape Changing Components with Stimuli Responsive Materials," Sci Rep , vol. 6, p. 24761, Apr 25 2016.CrossRefGoogle ScholarPubMed
Ionov, L., "Hydrogel-based actuators: possibilities and limitations," Materials Today , vol. 17, no. 10, pp. 494-503, 2014.CrossRefGoogle Scholar
Park, Y., Vella, G., and Loh, K. J., "Bio-Inspired Active Skins for Surface Morphing," Scientific Reports , vol. 9, no. 1, p. 18609, 2019/12/09 2019.CrossRefGoogle ScholarPubMed
Kolken, H. M. A. and Zadpoor, A. A., "Auxetic mechanical metamaterials," RSC Advances , vol. 7, no. 9, pp. 5111-5129, 2017.CrossRefGoogle Scholar
Chen, M., Jiang, H., Zhang, H., Li, D., and Wang, Y., "Design of an acoustic superlens using single-phase metamaterials with a star-shaped lattice structure," Sci Rep , vol. 8, no. 1, p. 1861, Jan 30 2018.Google ScholarPubMed
Carneiro, V. H., Puga, H., and Meireles, J., "Analysis of the geometrical dependence of auxetic behavior in reentrant structures by finite elements," Acta Mechanica Sinica , vol. 32, no. 2, pp. 295-300, 2015.CrossRefGoogle Scholar
Marckmann, G. and Verron, E., "Comparison of hyperelastic models for rubber-like materials," Rubber chemistry and technology , vol. 79, no. 5, pp. 835-858, 2006.CrossRefGoogle Scholar