Mining extremal property from a large 2D truss metamaterial database

Our project aims to explore the design space of truss metamaterials. Truss 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 architecture database of the designed metamaterials, including coordinates of flattened node-sets and elements of flattened adjacency matrices within building blocks.<strong>SubDataset for archiectures in eleven metamaterial groups ("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>SubDataset for mechanical properties in eleven metamaterial groups ("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>

本项目旨在探索桁架超材料（truss metamaterials）的设计空间。桁架超材料凭借其优异的性能与工程应用前景，受到了广泛关注。本批数据集采用通用方法构建，相关研究尚处于待发表阶段。本批数据集包含超过180万个独特条目，其中涵盖大量前所未有的超材料结构，将有力推动新兴的数据驱动设计策略的发展。
<strong>数据集S1（.csv格式）</strong>：收录所设计超材料的完整结构数据库，包含构建基元内扁平化节点集的坐标，以及扁平化邻接矩阵的元素信息。
<strong>11个超材料组结构子数据集（"group name"-features.csv）</strong>：包含11个独立数据库，分别对应11个超材料组，便于快速检索与调用。
<strong>数据集S2（.csv格式）</strong>：收录完整的力学性能数据库，包含杨氏模量、泊松比、剪切模量以及各向同性指数。
<strong>11个超材料组力学特性子数据集（"group name"-mechanical property.csv）</strong>：包含11个独立数据库，分别对应11个超材料组，便于快速检索与调用。
<strong>本数据集仅用于潜在发表成果的评审工作，在正式公开发表前不得被引用或使用。</strong>

搜集汇总

背景与挑战

背景概述

该数据集是一个包含超过180万种二维桁架超材料设计的大型数据库，旨在支持数据驱动的设计策略。数据集分为架构数据库和机械性能数据库，提供详细的节点坐标、邻接矩阵元素以及杨氏模量、泊松比等机械性能参数，并按11个超材料组分类以便于访问。