Journal article
Digital Texture Voxels for Stretchable Morphing Skin Applications
Advanced materials technologies, Vol.4(8), pp.1-n/a
08/2019
DOI: 10.1002/admt.201900260
Abstract
The skin of the cephalopod is a 3D display, where the papillae muscles control the protrusion of each voxel by several millimeters out of the skin plane, create hierarchical textures, and collectively change the overall skin pattern in a fraction of a second. A material system capable of mimicking this response using electromechanical actuation of twisted spiral artificial muscles (TSAMs) is presented in this study. TSAMs leverage the mechanics of their twisted geometry to extend out of plane by 8 mm, corresponding to 2000% strain using a voltage of only 0.02 V mm−1. They are made of polymer fibers wrapped with a helical metal wire. These actuators are assembled on a stretchable skin with the required flexible electrical connections to form an array of digital texture voxels (DTVs). The DTV array produces arbitrary 3D surface patterns on‐demand, and provides opportunities to control hydrodynamic drag, camouflage, and haptic displays.
The skin of the cephalopod is a 3D display, where the papillae muscles create hierarchical textures and collectively change the overall skin pattern. A material system capable of mimicking this response using electromechanical actuation of twisted spiral artificial muscles (TSAMs) is demonstrated. TSAMs extend out of plane by 2000% strain using a voltage of only 0.02 V mm−1.
Details
- Title: Subtitle
- Digital Texture Voxels for Stretchable Morphing Skin Applications
- Creators
- Caterina Lamuta - University of IowaHonglu He - University of Illinois at Urbana–ChampaignKaihao Zhang - University of Illinois at Urbana–ChampaignMichael Rogalski - University of Illinois at Urbana–ChampaignNancy Sottos - University of Illinois at Urbana–ChampaignSameh Tawfick - University of Illinois at Urbana–Champaign
- Resource Type
- Journal article
- Publication Details
- Advanced materials technologies, Vol.4(8), pp.1-n/a
- DOI
- 10.1002/admt.201900260
- ISSN
- 2365-709X
- eISSN
- 2365-709X
- Number of pages
- 6
- Grant note
- U.S. Air Force (AF FA9550‐19‐1‐0010) Beckman Institute for Advanced Science and Technology, University of Illinois, Urbana-Champaign Office of Naval Research (N00014‐19‐1‐2136) National Science Foundation (CMMI 18–25758)
- Language
- English
- Date published
- 08/2019
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984196621102771
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