Moment Tensor Analysis of the Acoustic Emission Source in the Rock Damage Process

CORC > 力学研究所 > 中国科学院力学研究所 > 力学所知识产出(1956-2008)

	Moment Tensor Analysis of the Acoustic Emission Source in the Rock Damage Process
	Yu HZ(余怀忠); Zhu QY; Yin XC(尹祥础)
刊名	Progress in Natural Science
	2005
通讯作者邮箱	Yuhz@lmm.imech.ac.cn
卷号	15 期号:7 页码:609-613
ISSN号	1002-0071
通讯作者	Yu, HZ (reprint author), China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China.
中文摘要	To further investigate the mechanism of acoustic emission (AE) in the rock fracture experiment, moment tensor analysis was carried out. The AE sources characterized by crack sizes, orientations and fracture modes, are represented by a time-dependent momen; To further investigate the mechanism of acoustic emission (AE) in the rock fracture experiment, moment tensor analysis was carried out. The AE sources characterized by crack sizes, orientations and fracture modes, are represented by a time-dependent moment tensor. Since the waveforms recorded by AE monitors correlate to the moment tensors, we prefer to select the P wave amplitude from the full-space Green's function of homogeneous and isotropic materials to determine the six independent components of the moment tensor. The moment tensor analysis was used to investigate the AE sources recorded in the experiment, and three types of micro-cracks were found, which are tensile mode, shear mode and mixture of the tensile and shear mode. In addition, the motion of micro-cracks was decided by eigenvectors of moment tensor. Results indicate that the moment tensor analysis may be used as a measurement to reflect the damage evolution of rock specimen.
学科主题	力学
类目[WOS]	Materials Science, Multidisciplinary ; Multidisciplinary Sciences
研究领域[WOS]	Materials Science ; Science & Technology - Other Topics
关键词[WOS]	SIGNAL ANALYSIS ; INVERSION ; FRACTURE
收录类别	SCI
语种	英语
WOS记录号	WOS:000231114700005
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/17239]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Yu HZ,Zhu QY,Yin XC. Moment Tensor Analysis of the Acoustic Emission Source in the Rock Damage Process[J]. Progress in Natural Science,2005,15(7):609-613.
APA	余怀忠,Zhu QY,&尹祥础.(2005).Moment Tensor Analysis of the Acoustic Emission Source in the Rock Damage Process.Progress in Natural Science,15(7),609-613.
MLA	余怀忠,et al."Moment Tensor Analysis of the Acoustic Emission Source in the Rock Damage Process".Progress in Natural Science 15.7(2005):609-613.