Kirigami Metamaterials

We are exploring kirigami metamaterials featuring a slit pattern that respond to a biaxial pull with unusual functional behavior, such as auxeticity, bistability, and out-of-plane morphing. An example is a class of bistable auxetic metamaterials consisting of a network of perforated rotating units connected with compliant hinges. These materials are multistable and grow in size once pulled. Another example is kirigami a undergoing non-uniform deployment that gives rise to out of plane shape shifting. To access anisotropic morphing, we have unveiled the intrinsic relation between slit symmetry, geometric frustration, and anisotropic scaling, thus enriching the range of achievable functionalities for applications spanning deployable space structures, wearable technologies, and soft machines. 

Some Related Publications

Qiao C, Agnelli F, Pokkalla DK, D'Ambrosio N, Pasini D, Anisotropic morphing in bistable kirigami through symmetry breaking and geometric frustration, Advanced Materials, Vol 36, 2313198, 2024. (PDF)

Abbasipour M, Kateb P, Cicoira F, Pasini D, Stretchable kirigami-inspired conductive polymers for strain sensors application, Flexible and Printed Electronics , Vol 8, 024003, 2023. (PDF).

Shang X, Liu L, Rafsanjani A, Pasini D, Durable Bistable Auxetics Made of Rigid Solids, Journal of Materials Research – Focus Issue: Architected Materials, Vol. 33 (3), pp. 300-308, 2018. (PDF)

Rafsanjani A, Pasini D, Bistable Auxetic Mechanical Metamaterials Inspired by Ancient Geometric Motifs, Extreme Mechanics Letters, Vol 9(2), 291-296 2016. (PDF)