Stretchable electronics composed of island-bridge layouts are being utilized in numerous research thrusts such as structural health monitoring, energy harvesting and storage, and wearables. Based on this topology, current study presents a design approach aimed at design of stretchable electronics devices to a high spatial accuracy. In our approach, we represent the island-bridge layout device using a surrogate linear spring -rigid node model for high-efficiency simulations. Linear springs are given stiffness and stretchability parameters based on possible serpentine interconnect variations, which are characterized through an automated multi-level optimum design space search and analysis study. Starting with generatively producing a family of designs, we determine the stretchability and stiffness of each design configuration via finite element analysis. Finally, the choice of each interconnect between nodes is determined by posing the objective island locations, local and global constraints, and possible interconnect configurations as a constraint satisfaction problem (CSP) and solving via AC-3 algorithm. We demonstrate the results of our approach via a set of computational simulations in which a non-uniform grid stretchable sensor network is designed. This benchmark study demonstrates the potential of our technique in achieving high accuracy in sensor deployment, as well as the reproducibility of the process.
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