Localization of deformation and its effects on power-law singularity preceding catastrophic rupture in rocks

doi:10.1177/1056789519857121

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	Localization of deformation and its effects on power-law singularity preceding catastrophic rupture in rocks
	Xue J(薛健)1; Hao SW(郝圣旺)1,2 ; Yang R(杨荣)1 ; Wang P 2; Bai YL(白以龙)1
通讯作者	Bai, Yilong(baiyl@lnm.imech.ac.cn)
发表期刊	INTERNATIONAL JOURNAL OF DAMAGE MECHANICS
	2020
卷号	29 期号:1 页码:86-102
ISSN	1056-7895
摘要	Three distinct length scales are involved in the deformation evolution and catastrophic rupture of heterogeneous rocks in general: two essential ones are the specimen size macroscopically and the grain size at micro-scale respectively, the other is the emerging localized band of deformation and damage. The band initiates almost nearby the peak load, and the rupture eventually occurs afterwards within the localized band. In this paper, we report that with the evolution of concentrated high strain and damage in the localized band, a power-law singularity emerges within the localized band preceding the eventual rupture. The localization of deformation imposes a spatial non-uniqueness on the power-law singularity, and then leads to a trans-scale characteristic of the power-law singularity. Based on this characteristic, it is demonstrated that the singularity presented by the global response of a whole specimen comes from the singularity of local response in the localized band. The localization and the power-law singularity are associated precursory events, spatially and temporally, respectively, before macroscopic rupture. In particular, based on the power-law singularity exhibited in the zonal areas near or across the rupture surface, a prediction of the occurrence time of catastrophic rupture can be made accordingly. This provides a practically helpful approach to the prediction of rupture, merely by means of monitoring the zonal areas adjacent to the localized band.
关键词	Localization power-law singularity trans-scale characteristic catastrophic rupture prediction
DOI	10.1177/1056789519857121
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000504186800006
关键词[WOS]	DAMAGE LOCALIZATION ; STRAIN LOCALIZATION ; FAILURE ; ERUPTION ; PREDICTION ; EVOLUTION ; VOLCANO ; EARTHQUAKES ; PRECURSOR ; FRACTURE
WOS研究方向	Materials Science ; Mechanics
WOS类目	Materials Science, Multidisciplinary ; Mechanics
论文分区	二类
力学所作者排名	1
RpAuthor	Bai, Yilong
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/81281
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing, Peoples R China; 2.Yanshan Univ, Sch Civil Engn & Mech, Qinhuangdao, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Xue J,Hao SW,Yang R,et al. Localization of deformation and its effects on power-law singularity preceding catastrophic rupture in rocks[J]. INTERNATIONAL JOURNAL OF DAMAGE MECHANICS,2020,29,1,:86-102.
APA	薛健,郝圣旺,杨荣,Wang P,&白以龙.(2020).Localization of deformation and its effects on power-law singularity preceding catastrophic rupture in rocks.INTERNATIONAL JOURNAL OF DAMAGE MECHANICS,29(1),86-102.
MLA	薛健,et al."Localization of deformation and its effects on power-law singularity preceding catastrophic rupture in rocks".INTERNATIONAL JOURNAL OF DAMAGE MECHANICS 29.1(2020):86-102.

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