Responsive kirigami: Context-actuated hinges in folded sheet systems

This paper explores the possibilities of active kirigami geometry — folding with the addition of strategically placed cuts and holes — through geometry, simulations, and responsive materials exploration. We have developed a novel method for kirigami pattern design through mesh optimization of surfaces, distribution of tucks across the discretized mesh, and the addition of cut and fold patterns. Based on our previous materials research on dual composite kirigami materials in 2016, we propose to focus on both oneway and two-way actuated materials, including shrinky dink films, shape memory alloys, and shape memory polymers. We have successfully characterized the materials, and as a proof of concept, produced models that utilize the abovementioned materials as environmentally-actuated hinges in folded sheet systems (2D to 3D). © 2018 Society for Modeling & Simulation International (SCS).