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