摘要
应变强烈集中在剪切带内部的现象称之为应变局部化现象。应变局部化的位置就是破坏的位置,通过研究发现煤岩截割过程是典型的变形局部化过程。采用数值方法研究了煤岩局部化变形过程,采用白光数字散斑相关方法研究了煤岩截割过程,并采用MATLAB进行数据处理,得到每一加载步的最大剪应变图,发现了变形过程的局部化现象,进而提出了煤岩截割的变形局部化理论。
when the strain is intensively localted in narrow shear band, this phenomon is called localization. This paper introduces the phenomen and theory of deformation localization of rock and coal.The numerical method has been used to study the process of localization. The white light digtal speckle corelation method has been used to study the process cutting of coal. The localization phenomena has been found and the localization theory of coal cutting put forward.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2002年第4期475-477,共3页
Journal of Liaoning Technical University (Natural Science)
基金
辽宁省教育厅基金项目(20081219)
