Data underlying the publication: Generic method for generating lattice metamaterial database and extreme properties

Our project aims to explore the design space of lattice metamaterials. Lattice metamaterials attract considerable interest for their exceptional performance and prospects for engineering applications. These databases are generated by a generic method under potential publication. These databases comprise over 1.8 million distinctive entries, especially including numerous unprecedented metamaterials. These databases will strongly advance the emerging data-driven design strategies.  <strong>Dataset S1 (.csv format).</strong> Entire feature database of the designed metamaterials, including coordinates of flattened node-sets and elements of flattened connectivity matrices within building blocks.<strong style="background-color:rgb(255, 250, 234);">SubDataset for architectural features ("group name"-features.csv).</strong> Eleven separated databases correspond to eleven metamaterial groups for convenient access. <strong>Dataset S2 (.csv format).</strong> Entire mechanical property database including Young’s moduli, Poisson’s ratios, shear modulus and isotropy index.<strong style="background-color:rgb(255, 250, 234);">SubDataset for mechanical property ("group name"-mechanical property.csv).</strong> Eleven separated databases correspond to eleven metamaterial groups for convenient access. <strong>The dataset is intended for reviews of potential publications and should not be cited or used before public publication.</strong>