辽宁工程技术大学学报（自然科学版）Issue(1)：59-63,5.
基于 CT 图像单轴受载煤样损伤计算
Coal damage calculation under uniaxial loading based on CT images
摘要
Abstract
According to the characteristics of CT images, the surface porosity and voxel porosity are defined in pixel and voxel scales respectively. The Digital Terrain Model (DTM) method is applied to calculate the surface porosity, and the method for calculating voxel porosity is also developed based on industrial CT grey images. In a case study, using the proposed methods, the CT coal images under different uniaxial loadings are analyzed, and the relation curves between two types of porosities and its stress are separately obtained. All of these porosities sufficiently reflect the inner damage in coal samples. The surface porosity shows the surface pore in pixel scale while the voxel porosity reflects the inner pore in pixel scale. The voxel porosity describes well the characteristics of CT coal images.关键词
损伤分析/煤样/工业CT图像/表面孔隙率/体孔隙率/数字地面模型/单轴加载/灰度标定Key words
damage analysis/coal sample/ICT image/surface porosity/voxel porosity/DTM/uniaxial loading/grey calibration分类
建筑与水利引用本文复制引用
毛灵涛,石鹏,涂辉,郝耐..基于 CT 图像单轴受载煤样损伤计算[J].辽宁工程技术大学学报（自然科学版）,2013,(1):59-63,5.基金项目
国家重点基础研究发展计划(973计划)基金资助项目(2010CB732002) （973计划）
北京市优秀博士论文指导教师基金资助项目(YB20081141301) （YB20081141301）
中央高校基本科研业务费专项资金资助项目(2009QM02) （2009QM02）
