Print Email Facebook Twitter Shape-matching soft mechanical metamaterials Title Shape-matching soft mechanical metamaterials Author Mirzaali, Mohammad J. (TU Delft Biomaterials & Tissue Biomechanics; Politecnico di Milano) Janbaz, S. (TU Delft Biomaterials & Tissue Biomechanics) Strano, M. (Politecnico di Milano) Vergani, L. (Politecnico di Milano) Zadpoor, A.A. (TU Delft Biomaterials & Tissue Biomechanics) Date 2018 Abstract Architectured materials with rationally designed geometries could be used to create mechanical metamaterials with unprecedented or rare properties and functionalities. Here, we introduce "shape-matching" metamaterials where the geometry of cellular structures comprising auxetic and conventional unit cells is designed so as to achieve a pre-defined shape upon deformation. We used computational models to forward-map the space of planar shapes to the space of geometrical designs. The validity of the underlying computational models was first demonstrated by comparing their predictions with experimental observations on specimens fabricated with indirect additive manufacturing. The forward-maps were then used to devise the geometry of cellular structures that approximate the arbitrary shapes described by random Fourier's series. Finally, we show that the presented metamaterials could match the contours of three real objects including a scapula model, a pumpkin, and a Delft Blue pottery piece. Shape-matching materials have potential applications in soft robotics and wearable (medical) devices. Subject OA-Fund TU Delft To reference this document use: http://resolver.tudelft.nl/uuid:c0cbe64f-dc19-4618-8cb9-b3de38131dd8 DOI https://doi.org/10.1038/s41598-018-19381-3 ISSN 2045-2322 Source Scientific Reports, 8 (1) Part of collection Institutional Repository Document type journal article Rights © 2018 Mohammad J. Mirzaali, S. Janbaz, M. Strano, L. Vergani, A.A. Zadpoor Files PDF s41598_018_19381_3.pdf 2.56 MB Close viewer /islandora/object/uuid:c0cbe64f-dc19-4618-8cb9-b3de38131dd8/datastream/OBJ/view