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The Changeable Power Law Singularity and its Application to Prediction of Catastrophic Rupture in Uniaxial Compressive Tests of Geomedia
Xue J(薛健); Hao SW(郝圣旺); Wang J(王军); Ke FJ(柯孚久); Lu CS(卢春生); Bai YL(白以龙)
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
2018-04-01
卷号123期号:4页码:2645-2657
ISSN2169-9313
摘要The acceleration precursor of catastrophic rupture in rock-like materials is usually characterized by a power law relationship, but the exponent exhibits a considerable scatter in practice. In this paper, based on experiments of granites and marbles under quasi-static uniaxial and unconfined compression, it is shown that the power law exponent varies between -1 and -1/2. Such a changeable power law singularity can be justified by the energy criterion and a power function approximation. As the power law exponent is close to the lowest value of -1, rocks are prone to a perfect catastrophic rupture. Furthermore, it is found that the fitted reduced power law exponent decreases monotonically in the vicinity of a rupture point and converges to its lower limit. Therefore, the upper bound of catastrophic rupture time is constrained by the lowest value of the exponents and can be estimated in real time. This implies that, with the increase of real-time sampling data, the predicted upper bound of catastrophic rupture time can be unceasingly improved.
关键词Catastrophic Rupture Power Law Singularity Power Law Exponent Prediction Of Rupture
DOI10.1002/2018JB015591
收录类别SCI
语种英语
WOS记录号WOS:000434133700007
关键词[WOS]TIME-TO-FAILURE ; VOLCANIC-ERUPTIONS ; DISORDERED SOLIDS ; HETEROGENEOUS MATERIALS ; FRACTURE PRECURSORS ; ACCELERATING RATES ; CRITICAL-BEHAVIOR ; EARTHQUAKES ; MODEL ; CREEP
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
项目资助者National Natural Science Foundation of China(11372316 ; National Basic Research Program of China(2013CB834100) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB22040501) ; Opening Fund of State Key Laboratory of Nonlinear Mechanics (LNM) ; Open Fund of State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining & Technology (Beijing)(SKLGDUEK1516) ; 11772332 ; 11432014 ; 11672258)
论文分区二类/Q1
力学所作者排名1
引用统计
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77503
专题非线性力学国家重点实验室
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GB/T 7714
Xue J,Hao SW,Wang J,et al. The Changeable Power Law Singularity and its Application to Prediction of Catastrophic Rupture in Uniaxial Compressive Tests of Geomedia[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2018,123(4):2645-2657.
APA 薛健,郝圣旺,王军,柯孚久,卢春生,&白以龙.(2018).The Changeable Power Law Singularity and its Application to Prediction of Catastrophic Rupture in Uniaxial Compressive Tests of Geomedia.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,123(4),2645-2657.
MLA 薛健,et al."The Changeable Power Law Singularity and its Application to Prediction of Catastrophic Rupture in Uniaxial Compressive Tests of Geomedia".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 123.4(2018):2645-2657.
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