Journal
EXTREME MECHANICS LETTERS
Volume 1, Issue -, Pages 120-126Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.eml.2014.12.010
Keywords
Stretchable electronics; Serpentine interconnect; Finite element analyses; Prestrain; Fabric
Funding
- US Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES) [DOE DE-FG0207ER46471]
- National Science Foundation [DMR-1121262, CMMI-1400169]
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [D00008]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1400169] Funding Source: National Science Foundation
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A mechanically rugged form of stretchable electronics can be achieved through integration of functional materials and devices with composite substrates consisting of an ultralow modulus silicone adhesive layer on a strain-limiting fabric framework. The resulting system is sufficiently soft to enable extreme levels of deformation and non-invasive use on the skin, yet sufficiently robust for repetitive application/detachment. This letter introduces theoretical and experimental studies of mechanical designs, with optimization for a representative island-bridge device configuration to yield high levels of elastic stretchability. The physics of prestrain conversion and its role in enhancing the stretchability are systematically explored. (C) 2014 Elsevier Ltd. All rights reserved.
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