Fracture Patterns in Laminated Mancos Shale

Mancos shale samples scanned pre and post-triaxial testing. Triaxial testing at various stress loading paths and confining pressures ranging from 100 to 500 psi. Three types of samples (Perpendicular Bedding- PD_ , Directional Bedding- 45_ , Parallel Bedding- PL_) Videos of fracture network visualization using Fiji/Image-J post-triaxial testing can be found here: https://www.youtube.com/playlist?list=PLv0npDbE5HXvEdptgajRDG3x-lwmtGDbr X-ray power ranging from 16.9 to 30.3 W. Copper filters used with thicknesses varying from 0 to 0.25 mm. Exact voltage and current settings for each scan are listed separately. Scanned at 4 fps (frame per second) with an exposure time of 250 ms to give 2984 projections over 360 degrees. Image type is 16-bit. Image properties for each scan are listed separately. Resolution (both voxel size and spot size) ranging from 65 to 75 microns Device: Nikon XTH-225 Graduate Research Assistants: Matthew Ramos and Jeffery Luo Principal Investigator: Dr. Nicolas Espinoza (https://sites.utexas.edu/eagle/) Facility Location: The University of Texas at Austin

本数据集包含曼科斯页岩（Mancos shale）样品在三轴测试（triaxial testing）前后的扫描数据。测试采用多种应力加载路径，围压范围为100至500磅每平方英寸（psi）。样品共分为三类：垂直层理型（Perpendicular Bedding-PD_）、斜交层理45°型（Directional Bedding-45_）和平行层理型（Parallel Bedding-PL_）。
三轴测试后的裂隙网络可视化视频采用Fiji/Image-J软件制作，可通过以下链接获取：https://www.youtube.com/playlist?list=PLv0npDbE5HXvEdptgajRDG3x-lwmtGDbr
X射线（X-ray）功率范围为16.9至30.3瓦（W），使用厚度0至0.25毫米（mm）的铜滤片。每次扫描的精确电压与电流参数将单独列出。
扫描帧率为4帧每秒（frame per second, fps），曝光时间250毫秒（ms），在360°范围内采集2984幅投影图像。图像格式为16位（16-bit）。每次扫描的图像属性将单独列出。分辨率（含体素尺寸（voxel size）与光斑尺寸（spot size））范围为65至75微米（microns）。
扫描设备为尼康XTH-225（Nikon XTH-225）。
研究生研究助理：Matthew Ramos与Jeffery Luo
首席研究员：Nicolas Espinoza博士（https://sites.utexas.edu/eagle/）
设施地点：德克萨斯大学奥斯汀分校（The University of Texas at Austin）