Dataset of angular and compressive responses of biomimetic artificial spinal discs fabricated using multi-material additive manufacturing

The dataset is related to the article: “Exploration of the influence of different biomimetic designs of 3D printed multi-material artificial spinal disc on the natural mechanics restoration” submitted to Materials & Design. The presented dataset includes the 3D models of the five artificial spinal disc (ASD) designs, and the raw data of the in vitro mechanical test results of the five ASD designs. The five ASD designs that include four biomimetic ASD designs together with one control ASD design are fabricated using a Stratasys Connex3 Objet500 inkjet-based, multi-material 3D printer. The mechanical tests performed include an angular test and a compression test to measure the ASD’s behaviour in the seven most frequent loading scenarios of the spine: flexion, extension, left/right lateral bending, left/right axial rotation, and compression. The angular test is performed based on a custom six degrees of freedom, computer-controlled spine testing system together with an optoelectronic motion analysis system, while the compression test is performed based on an Instron testing machine. This dataset helps gain knowledge into the influence of different biomimetic design concepts on the mechanics of the multi-material ASD. In addition, the future multi-material ASD design can benefit from this dataset by using it as a reference. The dataset contains two folders and files: stl_files and Raw_data. The folder stl_files provides 3D models of the five ASD designs in stl format and contains five subfolders: Disc_1, Disc_2, Disc_3, Disc_4, and Disc_5. Each subfolder corresponds to one of the five ASD designs. The folder Raw_data contains the raw data of the compressive and angular responses of the five ASD designs, while each ASD design contains five specimens. The raw data is composed of three datasets. The reaction forces and displacements of the specimens in the compression test recorded by the Instron machine are stored in the folder named Compression. The motions of the specimens in the angular test recorded by the optoelectronic motion analysis system are stored in the folder named Optotrak, while the reaction moments of the specimens in the angular tests recorded by the six-axis load cell are stored in the folder named Spine_tester.本数据集关联一篇投稿至《材料与设计（Materials & Design）》的学术论文，论文标题为《3D打印多材料人工椎间盘不同仿生设计对自然力学修复的影响探究》。本数据集包含五款人工椎间盘（artificial spinal disc, ASD）设计的三维模型，以及五款人工椎间盘体外力学测试结果的原始数据。该五款人工椎间盘设计包含四款仿生人工椎间盘与一款对照人工椎间盘，采用Stratasys Connex3 Objet500喷墨式多材料3D打印机制备而成。本次力学测试涵盖角度测试与压缩测试，用于复现脊柱七种最常见载荷工况下的人工椎间盘力学行为：屈曲、伸展、左右侧屈、左右轴向旋转以及压缩载荷。其中角度测试基于定制化六自由度计算机控制脊柱测试系统，搭配Optotrak光电运动分析系统完成；压缩测试则依托Instron试验机开展。本数据集有助于解析不同仿生设计理念对多材料人工椎间盘力学性能的影响，同时可为未来多材料人工椎间盘的设计提供重要参考依据。本数据集包含两个核心文件夹与配套文件：stl_files与Raw_data。其中stl_files文件夹存储了五款人工椎间盘的stl格式三维模型，下设Disc_1、Disc_2、Disc_3、Disc_4、Disc_5五个子文件夹，每个子文件夹对应一款人工椎间盘设计。Raw_data文件夹则存储了五款人工椎间盘的压缩与角度测试响应原始数据，每款人工椎间盘对应五个测试试样。原始数据共包含三类数据集：由Instron试验机记录的压缩测试中试样的反力与位移数据，存储于Compression文件夹内；由Optotrak光电运动分析系统记录的角度测试中试样的运动数据，存储于Optotrak文件夹内；而由六轴力传感器记录的角度测试中试样的反力矩数据，则存储于Spine_tester文件夹内。