摘要
为了掌握煤样加载过程中的声发射特征及变形规律,对煤样加载过程中的应力-应变-声发射特征进行测试与分析。并以损伤变量为纽带,建立了煤样变形模型。根据声发射监测结果,对应力-应变曲线进行了反演,并与实测结果进行了对比。
In order to grasp the characteristics of acoustic emission and deformation law in the loading process,the samples were tested for stress-strain-acoustic emission under loading paths. Damage variable was taken as a link to build a deformation model of coal sample. The acoustic emission monitoring results were used to inverse the stress-strain curve, and the results were compared with the measured results.
出处
《煤炭技术》
北大核心
2017年第7期76-78,共3页
Coal Technology
基金
山西省科学技术发展计划(工业)项目(20140321003-05)
关键词
煤样
声发射
变形演化
coal sample
acoustic emission
deformation evolution
